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The substituent is deuterium.是什么意思？

The substituent is deuterium.

取代基是重氢.

相关词汇
the is deuterium

the

art. 指已提到的人（物），指说话人与听者已知的人（物），用于独一无二的事物前，与形容词最高级和序数词连用；
例句
He did have a real knowledge of the country...
他对该国的确知之甚多。

is

vt.& vi. 是（be的三单形式；n. 存在；
例句
Bollinger 'RD' is a rare, highly prized wine.
博林格RD香槟是一种名贵的备受推崇的葡萄酒。

deuterium

n. 氘，重氢；
例句
More reactive are the heavier isotopes of hydrogen, deuterium and tritium.
更为活跃的是氢的较重同位素, 氘和氚.
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He acknowledged publicly that he might have made a mistake.
他当众承认自己可能犯了个错误。
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使飞机减速的螺旋形气流涡旋
You just go on ahead. I'll come by later...
你只管先往前走。我随后就来。
He who spares his rod hates his son, But he who loves him chastens him early.
24不忍用杖打儿子的,是恨恶他;疼爱儿子的, 趁早管教.
For further information, please contact 414 3925, extension 2253.
详情请致电414 3925,转分机2253。
He sat there while I made the case for his dismissal...
他坐在那儿，听我陈述解雇他的理由。
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撒切尔女男爵的主张在很多人看来是可信的。
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一份耕耘，一份收获。
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该法令迫使工会推迟罢工。
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工作本身十分容易。
herbal lore
本草学
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彼得书房外面排起了队。
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她的戴姆勒豪华轿车原地待命,发动机在空转。
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欢呼声低落下去后, 伊格尔介绍起每个仙灵, 这一大串名字在我耳边叮当作响.
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谁知, 欧内斯蒂娜却偏偏跟她处处作对.
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不管是用茶壶还是冲茶器,茶叶都不能过量.
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None but God will ever know what I suffered.
只有上帝知道我受过什么苦。