查询词典 last-ditch

We have used GC to follow up the formation of epoxy acid and established the acidify condition; we have done series of parallel experiments to better the pivotal condensation reaction between acid and amine; In the cyclization step, we use cheap and available reagent-Lithium amide , rather than expensive LiHMDS, to proceed the reaction; and at last, we introduced green reagent-ozone to clear the phenyl group of nitrogen to avoid using heavy metal reagent-CAN. The total yield for this method is 29.8%.

通过GC监测，确定环氧酸的最佳酸化条件；对关键的酸和胺的缩合步骤，平行试验了多种条件；在环合一步，用价廉易得的氨基锂及催化量的HMDS代替昂贵的LiHMDS进行反应；氮上苯基的脱除采用臭氧，避免了重金属试剂-硝酸铈铵的使用，总收率为29.8％。

There has been a substantial interest in digital processing of acoustic system in the last two decades.

在过去的二十年里人们对音响系统的数字处理有着相当的兴趣。

Two of last year's biggest outbound deals involved the acquisition of mining assets in Australia, but Chinese investment in Australia remains a politically sensitive issue.

虽然中国去年最大并购交易中的两项涉及对澳大利亚矿业资产的收购，但中国在澳大利亚的投资依然是个政治敏感问题。

At last, this paper analyze the performance of the High Speed Data Acquisition System.

最后，文章对该系统的性能做出了分析。

Last year,this area the acreage of growing wheat has increased three-fifths of the total.

去年，这个地区种小麦土地面积增加到全地区耕地面积的五分之三。

At last,based on the traditional cluster-cluster aggregation model we introduce acritical cluster size and a breakup exponent that depends on the fragment sizes in thereversible and irreversible cluster-cluster aggregation processes.

在第六和第七章中，我们研究了临界集团的大小对可逆和不可逆集团聚集过程标度行为的影响。我们知道，在一般的CCA模型中，只要二个集团通过扩散碰到一起，它们便融合成一个更大的集团。

The acrobatic performances will last until the end of September.

吴桥杂技团在这里的表演将持续到今年的9月底。

Last two years I have work on acrylic and gold foil.

在过去的2年中，我曾经在作品中使用亚克力和金箔材料。

ACTA was expected to come into force by the end of last year, but talks are still ongoing.

ACTA 预期会在去年年底生效，但现在谈判仍在进行。

The UK's Digital Economy Bill, unveiled in last month, is clearly inspired by ACTA.

英国上月颁布的的数字经济法，可以明显的看出其受ACTA的影响。

We have no common name for a mime of Sophron or Xenarchus and a Socratic Conversation; and we should still be without one even if the imitation in the two instances were in trimeters or elegiacs or some other kind of verse--though it is the way with people to tack on 'poet' to the name of a metre, and talk of elegiac-poets and epic-poets, thinking that they call them poets not by reason of the imitative nature of their work, but indiscriminately by reason of the metre they write in.

索夫农 、森那库斯和苏格拉底式的对话采用的模仿没有一个公共的名称；三音步诗、挽歌体或其他类型的诗的模仿也没有——人们把&诗人&这一名词和格律名称结合到一起，称之为挽歌体诗人或者史诗诗人，他们被称为诗人，似乎只是因为遵守格律写作，而非他们作品的模仿本质。

The relationship between communicative competence and grammar teaching should be that of the ends and the means.

交际能力和语法的关系应该是目标与途径的关系。