解决了最初的一些问题之后，终于成功地制造出了大量丙酮。After some initial problems, acetone was successfully produced in quantity.这两个氨基酸从丙酮酸获得它们的碳架.These two amino acids derive their carbon skeletons from pyruvate.将乙酰丙酮铁, 苯基B- 萘胺及磷脂通过40目筛加入.The fer...
The factory's workforce has dwindled from over 4,000 to a few hundred.工厂雇员总数已经从4,000多人减少到几百人。The cocoa industry dwindled because it became increasingly difficult to cover costs.由于越来越难以收回成本，可可产业日渐衰落。His wealth dwindl...
...the only woman among the authors making it through to the last six.进入最后6人名单的唯一一位女作家Here are some good sources of information to assist you in making the best selection...这里是一些有价值的信息来源，可以帮助你作出最佳选择。Broadcasting was rega...