Generally, the figure of the one in the cave is smaller, the growing speed is very slow and the season growing is not obvious, mainly because of lack of food and the low temperature (around 15℃) in the karst cave water. In the numerable characters, the anal fin, scale of encircle tail and gill raker of the one in the cave are in the tendency of increasing so as to adapt to the narrow water passage in the karst cave, while the length of the cave Cyprinus carpio is lengthening comparing with the one on the surface.

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When evaporation was in process, due to low initial water content, most infiltrated water from small intensity and amount of rainfall would be consumed by intensive evapotranspiration during rainy season, and lateral downslope unsaturated flow seldom took place. However, soil water would move downslope by gravitational and matric potential gradients after continuous rainfall.

3在防止蒸發(fā)條件下，再分布過(guò)程中A片污黄，土壤水分在重力的作用下有沿坡向下運(yùn)移的趨勢(shì)妇女满足农民工精彩的毛片；在蒸發(fā)條件下，由于初始含水量一般較低欧美黄色视频涩,爱，雨季量小且分散的降雨極易為強(qiáng)烈的蒸發(fā)蒸騰所消耗95福利人人干人人摸，側(cè)向沿坡向下流難以發(fā)生，但在持續(xù)的降雨條件下日本三级电影在线视频，土壤水分在重力勢(shì)和基質(zhì)勢(shì)梯度的作用下易沿坡向下運(yùn)移一级黄色视频在线免费播放A级。

Summary: A kind of irrigator applying to arbors in city virescence belts was studied, which has a great capacity and has no effect on scenery because it was buried round the roots of trees. It also has a lot of characters such as the filtration of water resource is undemanding, the seepage of water completely depends on gravity, the working stress of transporting water is low and so on..

本文研究了一種應(yīng)用于城市綠化帶喬木的地下滲灌裝置，它具有容量大人人艹人人莫，埋設(shè)于樹(shù)木根區(qū)土壤中不影響地面景觀午夜网站加勒比我污，對(duì)水源過(guò)濾要求低，完全依靠重力滲灌久久最新视频地址，輸水工作壓力低等特點(diǎn)欧美精品午夜理论片在线播放情事。

This essay analyzes the method and procedure of ice-making recorded in Huai Nan Wan Bi Shu, and creatively proposes that the principle of "ice-making in summer" is refrigeration through the quick evaporation of water to absorb heat under low pressure, and that ice is made on the fine silk at the mouth of an urn, but not inside the urn at its bottom as it was conventionally thought. The essay points out three necessary conditions which should be fulfilled in order to realize "making ice in summer": low relative humidity (less than 26%), large volume of the urn (about 100 L) and proper air temperature (about 20℃).

分析《淮南萬(wàn)畢術(shù)》所載制冰方法和過(guò)程，提出低壓下水快速蒸發(fā)吸熱制冷是"夏造冰"的制冰原理欧美在线观看18；結(jié)冰的部位不是傳統(tǒng)觀點(diǎn)所認(rèn)為的甕底黄色网站免费进入入口，而是在甕口的嫌上；指出要實(shí)現(xiàn)"夏造冰"激情人妻一级毛片在线视频，需滿(mǎn)足三個(gè)條件：相對(duì)濕度低（低于26%）黄色AV免费的网站、甕的容積大（100升左右）、空氣的溫度適當(dāng)（20℃左右）不卡一级片。

Because the water level self-recording device at Dajiangkou hydrological stations of Wusijiang in Guangxi could not run normally for a long time, a low-cost and simple water level information transmission device, cable-transmission water gauge was developed.

為解決廣西武思江大江口水文站水位自記臺(tái)長(zhǎng)時(shí)間不能自記的問(wèn)題瑟网站，研制了一種低成本的簡(jiǎn)易水位傳導(dǎo)裝置——索傳水位計(jì)。

This second exhibit can exhibit times Warton 8 inches, wait for whole set product 4 inches with family expenses film, ultralow pressure, low pressure, fight pollute and fight the international such as oxidation banner technology and come to a company a few years be in briny desalt, sewage purification, medium water is answered use, drinking water industrial water is rarefied, rarefied and the arrogant person outstanding achievement that condenses the field place such as depart to obtain and applied technology.

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Especially, it is found that there exists three types of relative permeability of water such as concave, convex to the water saturation ax and the reversed "S" pattern. The super-low permeability reservoir is sensitive to pressure, apparent with millipore undersaturation and water blocks. In this study, a new concept of irriducible undersaturation is brought up. And a new mode to describle the process of imbibition dynamics is used to reveal and confirm the mechanism of pinhole enveloping macropore as following: pendular ring of wetting phase gathers→it fills throat→it truncates nonwejting phase . The expression of pressure distribution and the equation of oil production are deduced under conditions of non-darcy linear seepage and non-linear seepage.

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The study shows:(1) the generation of sulphur-bearing gas is controlled by the formation water;(2) the present distribution of hydrogen sulphide is the result of the segregation of water and gas, and it is also influenced by the heterogeneity of reservoirs;(3) the limited distribution of formation water is an important mechanism for forming gas fields of low sulphur content in China.

該問(wèn)題的研究說(shuō)明：①靖邊氣田含硫天然氣生成過(guò)程始終受地層水控制国产自产拍一区精品；②現(xiàn)今硫化氫分布是氣水分離結(jié)果欧美疯狂操逼，并受儲(chǔ)層非均質(zhì)限制；③揭示地層水體分布的局限性可能是形成我國(guó)低含硫氣田的一個(gè)重要機(jī)制黄色视频免费看高清版。

The system uses PID controller and fuzzy controller to design automatic control loops, a study of fuzzy three-element feed-water control system for a CFB municipal waste incinerator is introduced. The incinerator is faced with problems such as large-scale fluctuation of furnace heat load and low regulation resolution of main control feed-water valve. The fuzzy logic control system is applied to modulate PI control parameters according to steam drum water level to fit fluctuated heat load, the inner and outer control loops are realized in an asynchronous way to effectively decrease regulation time and improve regulation precision.

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