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1.A stepwise carbochlorination-chemical vapor transport(SC-CVT) technique is proposed for separation of thorium from mixed bastnaesite-monazite concentrate.

1.以氟碳铈矿-独居石混合稀土矿为研究对象,采用分步选择性碳热氯化-化学气相传输反应(SC-CVT),实现钍稀土元素

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2.A stepwise procedure for isolation and purification of lactoperoxidase by ultrafiltration and ion exchange chromatography was investigated.

2.采用-子交换色谱分步洗脱法,对牛初乳中乳过氧化物酶进行了分和纯化。

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3.Acid intensity of hydrosulfuric acid and stepwise ionization balance were discussed by the use of thermodynamic principle, which are helpful to inorganic chemistry teaching.

3.摘要本文应用热学原理对氢硫酸强度及逐级电平衡进行了讨论,有助于无机化学教学和学生学习。

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中高级英语短文

1.These adaptive changes appear to have strengthened interindividual affiliation, increased male-male tolerance and facilitated the stepwise aggregation from independent one-male, multifemale groups to large multilevel societies, the article said.

文章说,这些适应性变化似乎加强了个体间,增加了男性-男性容忍度,并促进了从独立一男多女群体逐步聚集到大型多层次社会。

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TED频版) 2020年6月合集

2.And here in Boston Children's Hospital at the Precision Vaccines Program I direct, we have five approaches, stepwise approaches we take, to build precision vaccines that are tailored to vulnerable populations.

在我指导精准疫苗项目中, 在波士顿儿童医院,我们有五种方法, 我们采取逐步方法, 来制造适合弱势人群精准疫苗。机翻

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