concentration GRE四级六级

Strippant,screening agentand their concentration are determined.Regeneration and recycle of the resin arestudied.

对解吸剂和掩蔽剂及其浓度的做了较详细的探索，并研究了树脂再生和循环使用情况。

Large concentrations of capital were in the hands of merchants.

大量资本集中在商人手里。

What is the concentration of salt in sea water?

海水中盐的含量是多少？

With great concentration she went through the movements.

她聚精会神地做完这些动作。

A gas in solution diffuses from region of greater to one of less concentration.

溶液中的气体由浓度较高的区域向浓度较低的区域扩散。

This concentration of airborne firepower played havoc with the enemy forces.

这次机载火力的集中攻击给敌军造成很大破坏。

The influence of the semibreadth of light source upon the measurement accuracy of the concentration of the solution is primarily discussed and then a corresponding expression is given in this paper.

本文对光源的半宽度在测量某种溶液浓度时对其测量精度的影响进行初步地探讨，并给出一个相应的表达式。

METHODS The phagocytosis of macrophagus and weight coefficient of immune organs were determined and the effect of the drugs on the concentration changes of erythrolysin in the serum were detected.

方法采用小鼠巨噬细胞吞噬功能试验和小鼠免重量系数测定,检测药物对小鼠血清溶血素的影响。

Study the effect of nine kinds of coagulant aid and precipitant aid such as atlapulgite to coagulant aluminum salt dispose of organic wastewater of high concentration, then optimize and assemble.

研究了采用活性白土等九种助凝助沉剂在铝盐混凝剂处理高浓度有机废水时的作用,继而进行优化组合,结果良好,例如用微量聚丙烯酰胺和0。

The concentration of serum adrenocorticotrophin(ACTH) and cortisol(F) were measured by RIA in 32 cases of male elderly patients with congestive heart failure and in 10 healthy men serving as controls.

测定32例老年男性充血性心力衰竭患者和10例年龄相仿健康男性血清促肾上腺皮质激素(ACTH)、皮质醇(F)浓度,并进行ACTH兴奋试验。

The research expressed, the consumption of power would increase with higher deslag of contain the solid of crud and with a certain concentration it would have a sudden rise.

排渣含固浓度越高,功率消耗越大;并且会在某一排渣浓度值急剧升高。

"In laboratory-scale studies, the data show that orange peel has a considerable potential for the removal of dyes from aqueous solutions over a wide range of concentrations," Bena?ssa says.

在实验室水平的研究，这些数据展示桔子皮被认为是能除去水溶中污物的可行性材料。

The sites contain great species diversity, including the world's largest known variety of salmonoid fish and exceptional concentrations of sea otter, brown bear and Stellar's sea eagle .

景区内物种丰富，除世界现存的最大鲑鱼群外，还集中了罕见的海獭、棕熊和鱼鹰。

She immediately became involved in an underground movement Aliyah Bet, which secretly organized the expatriation to the promised land of Jews who had escaped Nazi concentration camps.

刚来到罗马，她便参加了一个犹太地下移民组织，秘密帮助纳粹集中营里幸存下来的犹太人回到“应许之地”——巴勒斯坦一带。

The result showed that the successful rooting system was closely related to the concentration of macronutrient of MS medium, auxin concentration and developing state of the explant.

结果表明，培养基中无机盐浓度、外源激素水平、种类以及外植体的发育状况等对试管嫩茎生根具有明显影响。

Under the selection pressure of crude toxin filtration, three kinds of treatment methods and four kinds of phytotoxin concentrations were used to screen the blast-resistant callus phenylalanine.

摘要以稻瘟病病原菌粗毒素提取液为压，对水稻进行抗病性筛，结果表明：粗毒素提取液对水稻愈伤组织诱导、继代及分化有明显的抑制作用，抑制程度随毒素浓度提高而增强，且品种间差异显著。

The cuttage breeding for the hardwood and greenwood of American rabbiteye blueberry were taken in different media after the treatment in different plant growth regulator and concentration.

对美国兔眼蓝浆果的硬枝和绿枝采用不同药剂、不同浓度、不同基质处理后进行扦插育苗试验。

At the same time, in line with the organic solvent concentration around continues to increase, easily due to static electricity produced by filmogen and burst fire.

同时，随着周围有机溶剂浓度的不断增加，极易因薄膜材料产生的静电而突发火灾。

A recombinant HGP44 inhibited HIV-1 replication at a 50% effective concentration of approximately 2.5 micromolar, the researchers note, somewhat less potently than did P. gingivalis extracts.

研究者重组HGP44蛋白酶在约2.5微克分子的50%有效浓度时能抑制HIV-1复制，然而重组HGP44比直接从牙龈卟啉菌中提取的有效性略低。

The one dimensional continuity equations of n-on-p planar PN junction are solved at different boundary conditions. Generalized solutions of photocarrier concentration are given in this paper.

摘要对一维情况下平面PN结的连续性方程进行了求解，给出了不同边界条件下光生载流子浓度的一般形式解，并对结果进行了分析讨论。