New type of water chemistry for utility drum boiler and its principle and characteristic Two kinds of water chemistry's main principle and characteristic are detailedly analyzed. Against the problem of high eroding speed, high Fe content in feed water and boiler water, high scaling speed, short chemical cleaning interval, needing poisonous chemical deoxidant, etc for drum boiler's deoxidization water chemistry and difficulty of using oxidation water chemistry, a new type of water chemistry is put forward on the basis of analyzing the characteristic of whole power station's water steam cycle system, principle of two kinds of water chemistry and their practical effect in every cycle stage. Considering two water chemistry's merit, a new water chemistry called Limited Oxidation Water Chemistry is put forward, which is a local slight oxidization no-deoxidant water chemistry. And the proposed method's principle, control parameter, applying condition, start-lay up and emergency measures are initially calculated and analyzed.

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And tower water supply drainage work is compared with in general multilayer building and low tier of buildings water supply drainage work , fundamental theory and reckoning are identical in the field of some , tier of numbers are many because of the tower , the building altitude is big , the building function is broad , building structure is complicated but, what be accepted the external world condition restricting waits, tower water supply drainage work is listed in disregarding being to be still extent on technology depth,have exceeded low tier of buildings water supply drainage work category, The number having the following few characteristics tower water supply draining off equipment is many and, instant the source of water that the rate of flow giving a water yield and draining away water depends on , rational water supply of economy sewerage form and , breathable appropriate treatment draining off pipeline problem and, to ensure that water supply safety is reliable , the administration draining away water unobstructed and defending is convenient.

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Based on the eco- environment function, confirmed the constitution of eco- environment water demand(including the inside of the watercourse.and the ecological water demand of the outside of the watercourse such as ecological water demand of economical crop, of lake or reservoir and of cities.).③Analyzing the physical geography, hydrography, economy characteristic and water resource status, getting the proper calculation method. The Tennant applied to the eco- environment water demand of inside of the watercourse, woodland minmum eco- environment water demand calculation method applied to the eco- environment water demand of woodland, water ration method applied to farmland the eco- environment water demand, water evaporation method applied to the reservoir eco- environment water demand.

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Experiment through a water work model to the figure which turn on water tower from the hydraulics angle, from the hydraulics angle to the figure structure which turn on water tower and turn on water hole carry on a verification with excellent turn, emphasize research to turn on water tower dissimilarity under the size circumstance of the figure structure of enter the water bore water current flow Tai and release excessive water ability, water current to press a strong circumstance towards turn on water tower tower wall, scaleboard creation of pound at, and put forward more and so releasing excessive water circulate to adjust one degree way.

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First of all,we tested the germination and water uptake rate of 47 species typical xerophil seeds grow up in north China from 20 families,38 genuses under sufficient water and different Grads water stress by high-molecular-weight polyethylene glycol(PEG6000).The results show that Xerophil seeds from the same habitat exhibited similar patterns in response to water stress.Xerophil seeds from arid community were stronger in germination and imbibition than that from other two communities under serious water stress,whereas Xerophil seeds from humid community were sensitive to any degree of water stress.Namely,the seeds live in arid habitat possessed high germination and quickly water uptake in sufficient water or any degree of water stress,but the others grow up in humid habitat shown significant difference which germination and water uptake well under sufficient water but inhibited even if slight water stress.

首先XXXX性欧美极品V，我們通過對(duì)20個(gè)科，38屬日本在线中文字幕播放，47種旱生植物種子在水分充足和不同梯度的干旱處理(聚乙二醇PEG6000)條件下的萌發(fā)率及吸水率實(shí)驗(yàn)發(fā)現(xiàn)超级超碰，當(dāng)水分脅迫強(qiáng)烈時(shí)，分布于干旱沙漠地區(qū)的植物種子其吸水率和萌發(fā)率都高于半干旱和濕潤地區(qū)的植物群落欧美人与动性行为高清视频，相反玖玖玖玖玖无码，濕潤地區(qū)植物種子的吸水率和萌發(fā)率對(duì)任何的水分脅迫都表現(xiàn)出敏感的響應(yīng)趨勢，也就是說午夜中文不卡理伦片，生境惡劣的植物種子在較強(qiáng)的干旱脅迫下一区黄色片A级，仍然保持了較高較快的萌發(fā)率及吸水率，水分充足與水分缺乏時(shí)無顯著差異亚洲h一区综合在线观看，而生境相對(duì)較好的植物種子在水分充足情況下萌發(fā)與吸水良好中文字幕视频网，但在干旱脅迫時(shí)則受到明顯抑制，水分充足與水分缺乏時(shí)差異顯著free性欧美婬妇xXXX视频偷拍。

The main content of course includes: the water cycle in the earth; the deposited of underground water; the physical characteristics and chemical components of underground water; the underground water of different imbed conditions; the supply, drainage and flowoff of underground water; the dynamic and balance of underground water; underground water in different mediums; the calculation of underground water movement; the basic knowledge of Water Statics; underground water resource; The environment problems of underground water in hydro-engineering.

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Main Products: Flat water level gauge, two-color water level gauge, water level controller electrode, the electrode water-level alarm, special ballasts, electrode-type boiler water level automatic control alarm, float-type automatic control of boiler water level alarm, water tank level display device, liquid level controllers, hot-water boiler alarm, high water tank display controller, display controller pool water level, Water heating system controller.

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The seventh layer to the 15th layer is high area, adoption north bound descend to of water supply method, pump to supply water to a water tank of the roof from the water supply of the underground garage, then be taken care of the net water supply toward high area by a water tank; Drain the system adoption is a dirty water, the waste water confluence system, the first floor drains alone, draining to sign the tube to establish to stretch the crest to ventilate the tube only, the dirty water was handle by septic tank again rear row to municipal soil pipe net; The fire fight system design becomes to eliminate the fire to bolt to extinguish fire the system, a fire water of the early 10 mins is supply by the fire fight water tank, normal the water supply be pumped by the fire fight Pump from the Saving pond ;The hot water system divides the area circumstance in accordance with the cold system of water, the cold water passes to give or get an electric shock after the heating apparatus concentration heat, again from promote the pump to provide to go together with the pipe line net, The hot water adopt is the closing type machine half circulatory system; The rain water adoption is inside drain the system, rain water direct row to munici p al soil pipe net.

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Applied with test of potted plant and measurement absorbency for study physiological response of activity of cell defense enzymes and lipid peroxidation of slash pine's half-sib under water stress. There are 7 families comparison with general slash pine. The contents of superoxide dismutase, catalase, antioxidant, malondialdehyde and the rate of superoxide anion(-O2) generating are mensurated under normal water condition while soil water content is 70% and light water stress while soil water content is 55% to 60% and medium water stress while soil water content is 35% to 40% and heavy water stress while soil water content is 20% to 25%. The test result indicate that either water grads or families of contents of SOD,CAT,AsA,MDA are mighty notable difference. The rate of -O2 generating is notable difference within families. The rate of -O2 generating is mighty notable difference within water grades.

為研究濕地松優(yōu)良半同胞家系保護(hù)酶及脂質(zhì)過氧化作用對(duì)水分逆境的生理響應(yīng)黄色网址免费观看高清无码，采用盆栽試驗(yàn)和吸光度測定結(jié)合的方法，以普通濕地松種子為對(duì)照一a黄片一区二区三区四区公司，測定了七個(gè)濕地松半同胞家系在正常水分狀態(tài)（土壤相對(duì)含水量為70%）A片蜜月人人爽人人操、弱度水分脅迫（土壤相對(duì)含水量為55%~60%）、中度水分脅迫（土壤相對(duì)含水量為35%~40%）和強(qiáng)度水分脅迫（土壤相對(duì)含水量為20%~25%）條件下的SOD超AAAA级毛片、CAT日韩偷窥自拍系列在线观看、AsA、MDA的含量和-O2產(chǎn)生速率肥逼强奸，研究結(jié)果表明：無論是不同水分梯度還是不同家系水平，SOD日本按摩高潮A级中文片,、CAT身为人母高清完整版在线观看、AsA活性和MDA含量的差異均達(dá)極顯著水平，不同家系水平間-O2產(chǎn)生速率有顯著差異三级毛视频，不同水分梯度間-O2產(chǎn)生速率差異達(dá)極顯著水平巨屌插逼视频。

Applied with test of potted plant and measurement absorbency for study response of the contents of photosynthetic pigments of slash pine's half-sib under water stress. There are 7 families comparison with general slash pine. The contents of photosynthetic pigments are mensurated under feebleness water stress while soil water content is 55% to 60% and moderate water stress while soil water content is 35% to 40% and heavy water stress while soil water content is 20% to 25%. The test result indicate that either water grads or families of chlorophyll and chlorophyll a and chlorophyll b and Chla/Chlb and carotenoid and Caro/Chl are mighty notable difference. The Chl and Chla and Chlb and Chla/Chlb little drop from normal soil water to initial water stress. Then drop obvious with increased water stress. The Caro and Caro/Chl little drop firstly from normal soil water to initial water stress,then up in metaphase water stress,after drop in evening water stress. The Chl and Chla and Chlb and Chla/Chlb and Caro of slash pine'half-sib are over general slash pine. The Chl and Chla and Chlb and Chla/Chlb and Caro of 464 and 1027 are over average value of slash pine's half-sib under water stress. The Caro/Chl of 609 and 46 are over average value of slash pine's half-sib under water stress.

為研究濕地松半同胞家系光合色素對(duì)水分逆境的響應(yīng)，采用盆栽試驗(yàn)和吸光度測定方法欧美熟妇XXXX性潮喷，以濕地松普通種子為對(duì)照欧美插插影院，測定了七個(gè)濕地松優(yōu)良半同胞家系在弱度水分脅迫（土壤相對(duì)含水量為55%~60%）、中度水分脅迫（土壤相對(duì)含水量為35%~40%）和強(qiáng)度水分脅迫（土壤相對(duì)含水量為20%~25%）條件下的光合色素国产操B在线，對(duì)濕地松優(yōu)良半同胞家系在不同水分脅迫條件下的光合色素進(jìn)行了研究亚洲黄片在线免费视频，結(jié)果表明：無論是不同水分梯度還是不同家系水平国产老色批在线观看视频，Chl、Chla美女的黄视频、Chlb亚洲白丝啪啪网、Chla/Chlb、Caro黄色一级视频网址、Caro/Chl均有極顯著差異激情图片激情小说在线视频；從正常水分至水分脅迫初期Chl、Chla片免费AA片线观看、Chlb可以在线直接看黄的网站、Chla/Chlb稍微下降，后隨著水分脅迫程度的加深下降較快91在线国产福利亚洲，從正常水分至水分脅迫初期Caro思思热思思操免费AⅤ视频、Caro/Chl先稍微下降，脅迫中期上升碰超免费人妻中文字幕，脅迫后期下降三级AAA片免费观看免费观看视频；所有半同胞家系的Chl、Chla天天日天天射天天舔、Chlb欧洲美女精品一区二区、Chla/Chlb、Caro高于普通種久久久精品首页，在水分脅迫條件下家系464wwwA片网站国产、1027的Chl、Chla十八岁以下禁止看的黄、Chlb2012在线中文字幕、Chla/Chlb、Caro高于家系的平均水平又硬又爽又粗又长的视频，家系60918禁又污又黄又爽的网站、46的Caro/Chl值高于家系的平均水平。