化学的这个阶段差不多一直延续到1700年.This phase of chemistry lasted till about 1700.量子化学的重要生物学应用正在不断增加.Significant biological applications of quantum chemistry are on the increase.它们全都有警戒色, 表明它们全都有化学的保护作用.All are aposematuically colored...
Infrared detectors have many uses.红外探测器有多种用途。The report advocated that all buildings be fitted with smoke detectors.报告主张所有的建筑物都应安装烟火探测器.This is heady wine for experimenters using these neutrino detectors.对于使用中微子探测器的实验工作者...
The artificial hip joint luxated and had to be put back surgically.人工髋关节脱臼了,必须通过外科手术方式归位.In very severe cases, bunions may be surgically removed.在非常严重的情况下，拇趾囊肿可能需要通过外科手术切除掉。Stage is difficult to determine until eschar ha...
Other companies grumble about a lack of gearboxes and bearings.其他公司也因为变速箱和轴承缺货而怨声不断.For use in most machine tool bearing & gearboxes lubricated by circulating system.可用于工具轴承 及 齿轮箱循环系统.Suitable for use in enclosed industr...