dichlorobutane是什么意思？

Tetrahydrothiophene was synthesized using iodine as a catalyst from 1, 4 - dichlorobutane and sodium sulfide.以1, 4- 二氯丁烷和硫化钠为原料,碘为催化剂,乙醇为溶剂合成了四氢噻吩....

dichlorobutane的音标：dichlorobutane的英式发音音标为：[daɪklɔ:rə'bju:teɪn]dichlorobutane的美式发音音标为：[daɪklɔrə'bjuteɪn]...

vi.作证，声明，证明，证实vt.作证，证明，为…提供证明，公开宣称，宣布...

英镑对大多数其他货币的汇率有望继续升高。The pound is expected to continue to increase against most other currencies.从事该职业的女性比例已升高到17.3%。The proportion of women in the profession had risen to 17.3%.他们要求发展扩张性的经济以应对升高的失业率。They demanded a more ...

slaughter的现在进行时为：slaughtering...

anchoretic的音标：anchoretic的英式发音音标为：['æŋkəretɪk]anchoretic的美式发音音标为：['æŋkəretɪk]...

The themes get tangled in Mr. Mahfouz's epic storytelling.马赫福兹先生讲述的故事过于宏大，主题有些混乱了。Their epic fight is the subject of a new film.他们史诗般的战斗是一部新电影的主题。I gave up my epic and wrote this little tale instead.我放弃了写叙事诗,而写了这个小故...

乙硫异烟胺...

offered的音标：offered的英式发音音标为：['ɒfəd]offered的美式发音音标为：['ɒfəd]...

“率直的”的英语可以翻译为：straightforward，frank，candid，downright ...

His other scientific interests concern cosmology and high - energy astrophysics.他的科学兴趣还包括宇宙论与 高能 天文学....the ideas implicit in Big Bang cosmology.宇宙大爆炸理论中一些不明晰的概念However, we do need to describe Aristotle's basic idea...

US unemployment figures for March showed the jobless rate stuck at 7 per cent...3 月份的美国失业数据显示失业率一直徘徊在 7%上下。The film company collapsed, leaving Chris jobless and minus his life savings.电影公司垮了，克里斯没了工作，也失去了他一生的积蓄。Jobless an...

Gilbert的音标：Gilbert的英式发音音标为：['gɪlbət]Gilbert的美式发音音标为：['gɪlbət]...

n.尾骨( coccyx的名词复数 )...

“砂粒”的拼音为：shā lì...

“轴丝”的英语可以翻译为：axial filament，[无脊椎] axoneme ...

adj.偏僻的，边远的，无关的，题外...