查询词典 water rate

Toxic effects of twelve pesticides（abamectin, endosulfan, diflubenzuron, danitol, tricyclazole, fluroxypyr, imazalil, tebuconazole, sulfapyridine, sulfamethoxazole, sulfamethazine and sulfadiazine）at low concentration（0.01mg·L-1） on the development of sea urchinembryos were investigated in this work, and the correlation between n-octanol/water partition coefficientand relative lethality rate was investigated.

为了研究低浓度下农药对海胆胚胎的毒性影响，以及正辛醇/水分配系数与致死率的关系，实验研究了12种常见农药（阿维菌素、硫丹、除虫脲、甲氰菊酯、三环唑、使它隆、抑霉唑、戊唑醇、磺胺吡啶、磺胺甲噁唑、磺胺二甲嘧啶和磺胺嘧啶）在低浓度（0.01mg.L-1）下对光棘球海胆胚胎发育的急性毒性影响。

On setting the derivative of nucleation rate formula equal to zero, the freezing temperatures of supercooling water were calculated.

对成核速率公式进行求导，使其为零，计算出过冷水在非溶解粒子和在平面上结冰的温度。

Deformational suspensoid polymer is a kind of colloidal solid with high elasticity, featured by the characteristics of rapid swelling rate, strong water absorbability, symmetrical dispersion and colorless transparent solution.

形变悬浮胶体聚合物是一种高弹性胶体颗粒，具有溶涨速度快、吸水性强、分散均匀、溶液无色透明的特点。

Water losing rate of sweet pepper steadily increased with the days increased in storage behind time.

贮藏后期，随着贮藏天数的增加甜椒的失水速度逐渐加快。

The DFT (B3LYP/6-31 + G) method was used to study the relative stabilities and probable proton transfer in isolated and monohydrated 2,4-dithiothymine molecules in gas phase. The effects of water on relative stabilities and the rate of the proton transfer were analysed. The results indicate that only one tautomer for 2,4-dithiothymine can exist in gas phase.

采用密度泛函方法在B3LYP/6-31+G水平上研究了2，4-二硫基胸腺嘧啶孤立分子和水合物的异构体的相对稳定性和可能的质子迁移反应，分析了水分子的参与对 2，4-二硫基胸腺嘧啶异构体的相对稳定性和质子迁移速率的影响。

By studying the factors that affect the purities of products and recoveries of isoflavones, we got the optimum conditions for desorption: 70℃, eluting solvent sequence: water 3.0 BV, 75% ethanol 5.0 BV, flow-rate 2.5 mL·min~(-1). Under these conditions, the content of isoflavones in the product was 56.0% with the recovery of 89.3%. The content of isoflavones in the product was ten times larger than in the initial material.

异黄酮的解吸，以异黄酮产品的含量及异黄酮回收率为指标，对解吸溶剂浓度、温度等因素进行考察，确定采用水、体积分数75％乙醇溶液在70℃下依次洗脱，收集醇洗脱液可得到大豆异黄酮含量达56.0％的产品，含量比原料提高了十几倍，异黄酮回收率也较高，达到了89.3％。

"Tensor diffusion imaging is a form of MR imaging that the rate and direction of water particles in the white matter structures of the brain," says lead author James Provenzale, MD.

主要作者，Provenzale医师说：「张量扩散成像技术是一种MR成像技术，这种技术可以对脑白质结构中的水颗粒的含量和变化趋势进行『测量』。

The absorbing rate remained unchanged in some time. It was confirmed that the reclaimed water can be used for the effective purification of tenter frame exha...

用循环水对染整定型机废气喷淋洗涤，在一定时间内有较高的净化效率，并且可以降低水的消耗量，同时有效减少二次污染的产生。

The spatial variability of an experimental field infiltration rate is examined by using the theory of time series of dynamic analysis method. The experimental field is 45m×50m, and had been irrigated by two sprinkler lines with different water quality in the last five years.

一、引言 80年代以前土壤科学和水科学工作者都用经典的统计方法研究土壤特性和多孔介质中水、热、气、溶质等运动特性在空间上的变异性。

The oxygen exchange rate was obtained according to the variation of amount of oxygen in the mixed layer column from surface to thermocline layer of sea water.

而大气中昨一些可能影响气候的痕量气体，以及由海洋产生，并向大气释放的气体，在海空界面之间的交换通量及交换速度，近年来更引起人们的注意。

And Pharaoh spoke to Joseph, saying, Your father and your brothers have come to you.

47：5 法老对约瑟说，你父亲和你弟兄们到你这里来了。

Additionally, the approximate flattening of surface strip using lines linking midpoints on perpendicular lines between geodesic curves and the unconditional extreme value method are discussed.

提出了用测地线方程、曲面上两点间短程线来计算膜结构曲面测地线的方法，同时，采用测地线间垂线的中点连线和用无约束极值法进行空间条状曲面近似展开的分析。