It was found that deficient or excessive soil moisture led to increase in abscission of squares and bolls and decrease in fiber quality.

研究發(fā)現(xiàn)国产精品999视频，土壤水分不足或過大，均易造成蕾鈴脫落增加和品質(zhì)下降操黑人逼。

During the reaction of alkylation, general contained 0.2%~2.0% butadiene will produce viscous heavy composite materials, which will raise final boiling point of alkylate and decrease octane, what is more, it will react with acid to produce corresponding ester, which will increase the consumption of acid, Therefore, we must remove butadiene by selective hydrogenation, at the same time, it will convert some of 1- butane to 2- butane by isomerization and raise octane of alkylate.

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Through the different assembly of the angle screws and the connective bar, to increase or decrease the fixation angle of the angle screw which as an upholding arm and the connective bar to meet the needs of different lumbosacral angles and hauling screw reducing distance.

通過角度開口螺釘與角度連接棒的不同組合應(yīng)用，增大或減小作為支撐臂的角度開口螺釘與連接棒之間的固定角度欧美性爱免费三级片视频，以滿足不同腰骶角及復(fù)位距離的需要欧洲性交一极毛片。

The results show: 1 attenuation of available chlorine of bleaching powder in water follows the eqution ρ=a+be-kt,attenuation ratio constant increases with reduction in initial concentration of available chlorine, high temperature, increase in COD and light and decrease in pH.

關(guān)于漂白粉在養(yǎng)殖生產(chǎn)中應(yīng)用的研究不多，趙增元等[1]報(bào)道了漂白粉在改善對蝦池水環(huán)境方面的一些結(jié)果性爱裸体视频，王勇強(qiáng)[2]就其對細(xì)菌性蝦病防治的藥理進(jìn)行了研究久久久特级黄毛片免费看，劉長發(fā)等[3]報(bào)道了漂白粉的清塘效果及其對蝦池水質(zhì)的影響。

The results show: 1 attenuation of available chlorine of bleaching powder in water follows the eqution ρ=a+be(superscript -kt), attenuation ratio constant increases with reduction in initial concentration of available chlorine, high temperature, increase in COD and light and decrease in pH.

結(jié)果表明：1漂白粉有效氯在水中按ρ=a+be規(guī)律衰減很操/很射，衰減速率常數(shù)隨初始有效氯濃度的減小在线一区精品、溫度的升高和COD的增大而加快，隨pH的下降和光照強(qiáng)度的增加而增加五月丁香六月婷婷在线综合观看。

Taking the measures such as thinking highly of the treatment of primary disease, mastering the indication of surgery, controlling the blood glocuse, reasonably applying excitatory autacoid and actively treating the complications, can increase the survival rate and decrease the disable and fatality rate.

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The results showed that the composite batcher drip nozzle consisting of ceramics drip nozzle and plug had high strength, excellent toughness, abrasion resistance and corrosion resistance, and long service life. It was not easy to fracture while replacing. The new batcher drip nozzle could increase the productivity of production line and decrease the production cost of metal grains when it was used to cast metal grains.

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The soil and cement are mixed into a solidified body in the deep level of the foundation by special-purposed deep mixer with cement as the solidifying agent, it can be increase the bearing capacity and decrease the settlement of the foundation by using the deep mixing method.

深層攪拌樁是一種加固飽和軟粘土地基的一種方法日韩毛片福利在线，它是利用水泥亚洲视频免、水泥漿、石灰等材料作為固化劑的主劑久久香综合精品久久伊人，通過特制的深層攪拌機(jī)械亚洲日本看视频，在地基深處就地將軟土和固化劑強(qiáng)制攪拌，利用固化劑和軟土之間所產(chǎn)生的一系列物理-化學(xué)反應(yīng)欧美一区二欧美欧美，使軟土結(jié)硬成具有整體性欧美性爱高潮免费看、水穩(wěn)定性和一定強(qiáng)度的良好地基。

Basisd on the controlled stocking rates, comparable repeated experiment was conducted to understand the stability of grazing ecosystem in vegetation, soil and livestock, considered the year as the principal component to evaluate the effect and mechanism of annual precipitation on grazing ecosystem characteristics, using the coefficient of variation in terms of ANPP and decrease and increase of functional groups to reveal the ecosystem stability and ecological compensatory effect in grazing ecosystem. The result not only richens the study contents of ecosystem stability, but also provides a guide for adaptive rangeland management plans, which are promoted the ecological and economic sustainable development.

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With the prolongation of the time of Pb and Cd stress, the chlorophyll content of the clones and families were induced to first increase and later decrease, except that NEF14 and NEF12 were downtrend at all times. With the increasing of Pb and Cd concentration the chlorophyll content decreased fastly in the latter stress period. The downtrends of NE60 and NEF14 which were stress-resistence were small.

隨脅迫時間的延長超碰在线免费首页，雜交鵝掌楸無性系和家系(但NEF14和NEF12一直呈下降趨勢)的葉綠素含量先升后降，隨著Pb老牛影视国产在线、Cd處理濃度增大九九爱综合，在脅迫后期葉綠素含量下降越明顯，抗性較強(qiáng)的NE60無性系免费人成毛片在线视频、NEF14家系降幅較小国产精品久久久久精品二级。