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The zinc-bearing solution is then electrolysed to yield zinc metal and to generate the halide species.

然后电解负载锌的溶液，以得到锌金属和产生卤化物。

The wet method of making non-water AlF 3 in our factory can restrain the environment pollution, enhance the production yield and reduce the cost in aluminium electrolysing.

我厂采用国内先进工艺生产的无水氟化铝，能有效地减少环境污染、提高收率，为电解铝企业降低成本。

The yield criterions are approached in general forms in EPSAS, the parametric evaluational function is used to deal with the multi-goal non-differentiable problem in SOSATT.

对EPSAS系统中的屈服准则做了通用性处理；采用参变量评函数法解决了SOSATT系统中的多目标不可微问题。

Optimum conditions are as follows: DMF is used as solvent, compound quaternary ammonium salt as catalyst, n(p-nitrochloro benzene):n=1: 1.2, m:m(p-nitrochloro benzene)=4%, m:m(p-nitrochloro benzene)1:1, and reacted under 155~160℃ for 18 h; reduction reaction is carried out in methanol with Raney nickel, which is used as catalyst; the raw product is added an antioxidant, and distilled simply under reduced pressure to obtain 4-fluoroaniline with excellence quality, purity is over 99.5%, total yield is 89.3%.

实验结果表明，氟化反应的最佳条件为：二甲基甲酰胺为溶剂、复合季铵盐为催化剂，n：n=1：1.2，m（催化剂：m=4%，m：m=1：1，于155~160℃下反应18h；还原反应在甲醇中进行，以阮内镍为催化剂；粗产品加入抗氧剂，减压条件下简单蒸馏得高品位的对氟苯胺。

An improved Adler method was used for preparing TAPPH〓. TAPPH〓 was synthesized in high yield by direct condensation of pyrrole with 4aminobenzaldehyde in refluxing propanoic acid with the presence of vitamin C. This new synthetic strategy for preparing TAPPH〓 can greatly extend synthetic methods for porphyrins containing amino groups.

我们通过对Adler法的合成条件进行改进，即在反应体系中加入还原剂Vc，由4-氨基苯甲醛直接合成了对酸敏感的TAPPH〓（1），提高了总收率，拓宽了Adler法的适用范围。

ABSTRACT: In the presence of sodium t-butoxide and DMSO,ethyl 2-oxocyclopentanecarboxylate was subjected to C-alkylation with 2-(4-bromomethylphenyl)propanoic acid with high regioselectivity to give 2-［4-(1-ethoxycarbonyl-2-oxo-1-cyclopentanylmethyl)phenyl］propanoic acid (4) which was followed by hydrolysis,decarboxylation and salt formation to afford loxoprofen sodium in about 72% overall yield.

在叔丁醇钠和二甲基亚砜的存在下，2-丙酸对2-乙氧羰基环戊酮进行C-烷基化，再经水解脱羧，成盐即得洛索洛芬钠，以2-丙酸计算，总收率为72%。

The results showed that difunctional POSS with clear structure could be prepared by this method with a high yield.A new,simple and feasible route to design and synthesize difunctional POSS was proposed.

结果表明通过此合成路线可得到高产率的结构清晰的双官能POSS，并提出了合成双官能POSS的新方案。

Unless they succeed,the yield gains of the Green Revolution will be la rgely lost even if the genes in legumes that equip those plants to enter i nto a symbiosis with nitrogen fixers are identified and isolated,and even if the transfer of those gene complexes,once they are found, becomes poss ible.

除非他们能取得成功，不然的话，绿色革命的产量收益将在很大程度上损失殆尽，即使豆科植物中使这些植物有条件进入到与固氮细菌共生关系的基因可被辨识出来和分离开来的话，且即使这些基因综合体，一旦被发现之后，其移植得以成为可能的话。

For fundamentalists, the value of an asset is the sum of the returns it will yield over its life.

对基本面分析派来说，资产的价值就是其整个生命周期产生的回报的总和。

It is enormously important to increase the yield of grain plants and a great deal has happened through the work of the geneticists in the last few years.

增加粮食作物的产量十分重要，在过去的一些年里，在基因学家的努力下已经取得了很大进展。

The shaping method of noncircular part and the tool holder's radial motion characters in noncircular turning process are discussed in detail in the thesis.

论文详细研究了非圆零件的成型方法和加工过程中刀架的径向运动规律。

I have not really liked him,I do not like his this kind of disposition.

我没有真的喜欢他，我不喜欢他的这种性格。