Study the biological limit of urine trans, trans-muconic acid for occupational exposure to benzene.
研究尿中反式,反粘康酸对苯职业接触的生物学极限。
The process involves taking titanium dioxide and treating it with silica, silicone grease or silicic acid for a few minutes.
这个过程包括以二氧化钛反应润滑脂或硅烷、硅酸几分钟。
Resolution of the use of non-resolution of enantiomers methods used in organic solvents tartaric acid for the separation agent, to be S-type.
拆分采用非对映异构体拆分方法,在有机溶剂中用酒石酸为拆分剂,得到S型。
But Mister Zundt says reducing air pollution and acid rain will reduce respiratory illnesses for people in the city.
VOA: special.2009.09.07
When you think about a gene or a transcript, the messenger RNA copy of a gene, you know that for every sequence of a nucleic acid there's a complimentary sequence.
当你们考虑一段基因或者一个,转录一段基因的mRNA拷贝,你们知道每个核酸序列,都有互补序列
We stopped in the afternoons to fish for a few minutes in little rivers turned black by the acid of cypress trees.
VOA: special.2010.01.30
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