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The main differences in chemical compounds related to the taste and flavorbetween cultured and wild prawns may be summerized as follows: 1 The content of quaternary bases in the extractives of wild prawn is higher than that of cultured prawn; 2 The content of fatty acids, C18:2ω6 is higher in the cultured prawn; 3 Many thiazole compounds were found in the odor concentrate of cultured prawn, azulene was found in the odor compounds of wild prawn; 4 The textrue of cultrued prawn meat is relatively weak.

综上所述，养殖对虾与天然对虾的尝味比较中主要差别是提取物组分的有机碱；对虾肌肉脂质比较结果是养殖对虾肌肉脂质中C18：2ω6含量特别高；对虾挥发性成分结果是养殖对虾中有大量的噻唑化合物，天然对虾存在薁类化合物；两类对虾质地比较的结果是养殖对虾质地不及天然对虾。

We also have to concentrate on the FA Cup final.

另外，我们还必须集中精力于足总杯决赛。

In this paper,the study on making cupric sulfate with high arsenic bearing copper concentrate and the recovery of gold and silver are introduced.

介绍了以高砷铜精矿为原料，进行制取硫酸铜并回收其中金银的研究。

The firm decided to cut non-business cost to the bone, and concentrate on developing high-tech products.

那家公司决定压数非经营性开支，集中资金开发高科技产品。

Experimental study on cyanidation for recovering gold and silver from a bearing-copper gold concentrate is conducted.

进行了从含铜金精矿中提取金银的氰化浸出工艺试验研究。

Experimental study on extraction of gold and silver from the carbonaceous silver concentrate By cyanidation—ferric salt oxidizing process

利用KClO3作氧化剂，对银精矿进行氧化预处理，考察盐酸浓度、氧化剂加入量、亚硫酸钠浓度和浸出时间对银浸出率的影响，在盐酸3。

A new process for treatment of high-sulphur and high-arsenic gold concentrate was studied, with included the roasting at lower temperature with the addition of alkali fusion agent and the cyanidation leaching with the addition of active additive.

摘 要：研究富硫高砷金精矿在加入碱熔剂经低温焙烧预处理后，再加活性添加剂条件下的氰化工艺，结果表明，金的氰化浸出率从直接氰化或沸腾炉焙烧后的焙砂氰化的30%～50%提高到87%～93%，浸出速度也有很大提高。

Culture.. management operation and ethics. On the aspect of thought , I throw light on the innovation-orientated thought -~ intuition; On the aspect of culture, I put emphasis on the innovative corporation culture ? mutual benefit culture; On the aspect of managerial operation, I focus on the virtual managerial philosophy and the relative procedure of it; Ultimately. I concentrate on the significance of ethics in Cyber- Society for the sake of maintaining the Knowledge Innovation achievements.

在思维层面重点分析决策主体具有知识创新导向的直觉思维；在文化层面重点分析决策主体具有知识创新导向的共享型企业文化；在管理运作层面侧重分析决策主体具有知识创新功能的虚拟管理哲学理念及其相应的运作过程；最后在伦理层面侧重分析互联网时代加强决策主体网络伦理建设对维护知识创新成果的重要性。

I believe that I utter a sentiment which would go nigh to surprising him or possibly to deafen him, if I could concentrate in my voice the utterance of all those in America who feel that sentiment

我相信，假如我能够将我们美国人民的真挚情谊倾注到我的声音里，我的声音会使他吓一跳，甚至可能震聋他的耳朵。

For the next few days,we'll concentrate on the antidotes to these debilitating beliefs.

在今后几天，我们将集中精神寻求那些消磨斗志的信念的解药。

He has to relate with three women in the movie, and yet remain implicitly faithful to the unseen Lucinda.

让克劳德布里亚里成功地饰演试验了一个难度很大的角色：和三个女人打交道，但还要底下对观众未曾谋面的卢馨达保持忠诚。

The experiment was conducted to study effects of inulin on the growth performance, indices of immune organs and serum immunoglobulin of laying chicklings as well as the performance of inulin which replaced the antibiotics in diets by adding 0.2%, 0.4% and 0.8% of inulin, respectively.

试验旨在通过在蛋用雏鸡日粮中添加0.2%、0.4%和0.8%的菊粉，研究菊粉对蛋雏鸡生长性能、免疫器官指数和血清免疫球蛋白的影响，以及菊粉替代抗生素对蛋雏鸡的应用效果。