The hills are largely carboniferous limestone, which is quarried at several sites.从多处遗址的挖掘来看, 这片丘陵大部分属石炭纪石灰岩.In Early Carboniferous, Tianshan mountains entered an intraplate evolution stage.从石炭纪开始天山地区进入陆内演化阶段.WHERE HAINA...
The foregoing considerations may be concluded in a few words.上述各种考虑可以用几句话来归纳一下.We feel that the foregoing analysis is deceptive and dangerous.我们认为上述的分析是靠不住的,也是危险的.The foregoing paragraphs were written in 1985.前面的几个段落写于19...
在脱氨作用中, 分子 含氨基 的部分被移去.In deamination, the nitrogen - containing amino portion of the molecules is removed.叠氮还原是向有机分子中引入氨基的重要方法.Reduction of azides is an important method to introduce amino group to organic molecules.采购产品...
Machine parts were also being shuttled across the border without authorisation.机器零部件也在未经批准的情况下出入边境。Are processes suitable to prevent design changes without appropriate checks and authorisation?程序中是否可以有效阻止未经检查和授权的设计变更?Ens...
Transitional metals ( Fe 3 + ) play an extremely important role in catalyzing CLA oxidation.变价金属离子 ( Fe~(3+ ) )能够促进共轭亚油酸氧化.Adenylosuccinate lyase ( ADSL ) is a bifunctional enzyme catalyzing de novo purine synthesis and ...