常見(jiàn)例句雙語(yǔ)例句The analytical scheme of magnetite in iron ores by means of the chemical separation has been investigated.本文研究了用化學(xué)分離法測(cè)定鐵礦石中磁鐵礦的方案。Systems that can not be separated by purely mechanical means (eg crude oil), chemical separation is the remaining solution.系統(tǒng)無(wú)法石油原油分離純機(jī)械手段（如：），化學(xué)分離是余下的解決方案。Since this chemical separation of the carbon component occurs entirely in the solid state, the resulting structure is a fine mechanical mixture of ferrite and cementite.由于這種碳成分的化學(xué)分離完全發(fā)生在固態(tài)中，產(chǎn)生的組織結(jié)構(gòu)是一種細(xì)致的鐵素體與滲碳體的機(jī)械混合物。權(quán)威例句The firm develops biocatalysts for use in making drugs as a complement to other chemical and separation technologies.ECONOMIST: MONITORThere are however few economically concentrated ores of the metals and their very similar chemical properties make the separation and isolation of individual REs in pure form difficult and expensive.FORBES: Shortage Of Rare Earth Metals Exacerbated By Smuggling 返回 chemical separation