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This study investigated the effect of sludge retention time on the removal of high concentrations of organic carbon, nitrogen and phosphate in a bench-scale sequencing batch reactor operating with a three-stage alternating anoxic-oxic sequence and step-feed to treat synthetic wastewater.

本研究利用阶梯进流配合缺氧／厌氧－好氧三阶段交替操作之批式反应器系统（ the step-feed alternating anoxic/anaerobic-oxic sequencing batch reactor， SAOSBR ），处理含高浓度碳、氮、磷之合成废水，并探讨污泥停留时间，对系统硝化、脱硝、除磷特性及处理效能的影响。

Using Rudbeckia hirta,Coreopsis drummondii,Callistephus chinensis, Althaea rosea ,four kinds of ornamental plant seeds as the test materials,treated with NaCl and Na2SO4 double salt solutions of different concentrations,and the relative germination percentage,root length,simply vigour index,synthetic inhibitory effect were measured to determine the effect of salt stress on seed germination.

以黑心菊、金鸡菊、翠菊、蜀葵4种花卉种子为材料，研究不同浓度NaCl和Na2SO4复盐溶液处理下种子及幼苗的耐盐性，并观察其相对发芽率、根长、简易活力指数、综合效应。

Mainly divided into reagent ammonia and industrial ammonia, concentrations were 25% and 20%.

主要分为试剂氨水和工业氨水，浓度分别为25%和20%。

The mass concentrations of sodium hydroxide,cetyltrimethyl ammonium bromide,sodium citrate and glycerin in the aqueous stripper are 90～100 g·L-1,10 g·L-1,10 g·L-1 and 10 g·L-1,respectively.

该脱漆剂以氢氧化钠水溶液为主体系，其中氢氧化钠的质量浓度为90~100 g.L-1，溴化十六烷基三甲基胺的质量浓度为10 g.L-1，柠檬酸钠的质量浓度10 g.L-1，甘油的质量浓度为

But ZFA without modification was not efficient for purification of ammonium and phosphate at low concentrations occurring in real effluent.

在粉煤灰为原料合成沸石研究的基础上，开发以新的物体废弃物-高温无害化后的苏州河底泥-为原料合成沸石，为无机固体废弃物提供了高附加值的资源化技术。

For sub-lethal tests, both rosy barbs and amphioxus were exposed to selected concentrations of copper.

亚急性毒性实验中，文昌鱼和玫瑰无须鲃分别用浓度为20%和30%的96h LC50的Cu(上标 2+)处理。

Results of variance Analysis showed that concentrations of mineral and active carbon have great effects on the experiment.

试验中还得出在培养基中加入活性炭能促进百合的生长并对生根培养有一定的促进作用。

The derivatives formed at the early stage of anatexis are different from the parent rocks in concentrations and distribution patterns of elements.

然而，深熔作用刚开始时形成的浅色体，其元素含量、分布模式与熔融母岩完全不同，Nd同位素组成存在较大差别。

The Concentrations of six trace metals and the three major elements in Japanese anchovy collected from Yellow Sea were measured.

测定了在黄海采集的各种体长的鳀鱼中6种痕量金属（Zn、Cu、Fe、Al、Mn和Sr）和3种主要元素的浓度。

Androgynus was a kind of hyperaccumulator in Cd, with critical value of 50 mg/kg, above which would cause poison in S. androgynus, and even dead when it was up to 800mg/kg; transfer coefficient would decrease with the increase in treated concentrations, which show that plant would protest Cd against transferring to above-grounds and causing poison.

以上结果说明五指山野菜是Cd超积累植物，且50 mg/kg时是五指山野菜正常生长的临界值，高于此浓度，将对其产生毒害，当浓度为800 mg/kg时，植株出现死亡；随处理浓度的增加，转移系数逐渐变小，说明植物在高Cd胁迫下阻止Cd向地上部分转移而产生更严重的毒害。

The quality of both red and white wine depends very much on the wine maker talent and on the quality of the grapes.

他的红酒和白酒的品质，根据酿造者的能力和葡萄的质量，各有差异。

No, I don't want to get drunk before my next match.

" "不，我不想让我的下一场比赛前喝醉了。