The horizontal bed is the foundation member which supports the headstock , tailstock, and carriage.卧式床身是基础构件,用来支承床头箱 、 尾座和拖板.Clutch in headstock makes the lathe start smoothly and brake quickly.在车头离合器使车床顺利启动和制动迅速.Radial ...
Nefedipine was synthesized with m - Nitrobenzaldehyde, ethyl acetoacetate ammonium acetate.以间硝基苯甲醛, 乙酰乙酸乙酯,氨化试剂为原料.Fructone was synthesized from ethyl acetoacetate and glycol using activated carbon supported phosphotungs...
就是这个，伙计们，业内最好的唱片指南。This is it, folks: the best record guide in the business.与此同时，黑胶唱片的销售量在1992年下降了一半，只有670万张。Meanwhile, sales of vinyl records halved in 1992 to just 6.7m.这张精选集在1984年首次以唱片形式发行。This compilation was first i...
She lubricates her hands with a lotion.她用一种洗剂来滑润她的手.This oil lubricates the machine.这种油使机器润滑.Dry Mouth Saliva lubricates the mouth, dehydration reduces the amount available.口腔唾液顺利口干 、 脱水量可削减....