黑药和镁的混合物具有离析的倾向.Mixture of black powder and magnesium have a tendency to segregate.这能离析为旋光异构体 吗 ?Can it be resolved into optical isomers?看物质能否由于沸腾和冻结而离析为组成该物质的元素.See whether the material can be separated into its element...
在阳台上她不会遭到猛禽的袭击.She was safe from predatory birds on the verandah.他是一只年轻的鹰, 一只猛禽.He is a young eagle, a bird of prey.有些猛禽从不攻击鸟类, 另外一些也只是偶而为之.Some raptor never attack birds, others only occasionally....
...the latitude and longitude co-ordinates of any location in the world.世界各地的经纬坐标the longitude of the island那座岛的经度He noted the latitude and longitude, then made a mark on the admiralty chart.他记下纬度和经度，然后在航海图上做了个标记。All pla...
Any atlas , containing many pages of maps, normally includes an index, called a gazetteer.任何载有多幅地图的地图集, 一般都附有一份地名索引.Gazetteer South America: Amazon , Orinoco, and coastal river drainages of the Guianas.南美洲: 圭亚那的亚马逊河, 奥里诺...
我们迄今还未将电子自旋的效应考虑在内.So far we have not included the effects of electron spin.我们引入电子自旋的标记如下.We introduce labels for the spin of electron as follows.通过环氧化和氧化就得到外消旋的含十八个碳的昆虫返动激素.Epoxidation and oxidation gave the racemic C 1...
Jack never wanted to stay in one place for very long, so they were always on the move.杰克从不想在一个地方呆太久，所以他们总在奔波辗转。Nigel says for the moment he is very happy to stay put in Lyon.奈杰尔说目前他很乐意留在里昂。No, the stationmaster didn'...
In the present study, gradients of gentamicin along the cochlea were measured.在目前的研究之中, 可以测量庆大霉素沿着耳蜗的浓度梯度分布.Conclusion Radix panacis quinquefolii isn't evidence cochlea toxicity for guinea pig.结论高丽参对豚鼠无明显的耳毒性作用.The ...