拼写相同意思不同的两个单词是同形异义词.Two words are homographs if they are spelled the same way but differ in meaning.拼写发音相同但意思不同的两个单词是同形同音异义词.Two words are homonyms if they are pronounced or spelled the same way but have different meanin...
我曾在出版业担任要职。I had a very high-powered job in publishing.关于出版业她非常了解，很清楚他们能够向书店推销10万本书。She knew enough about publishing to know that they could push a hundred thousand copies into the bookshops.这家报纸为一位著名的出版业巨头所有。The newspap...
And how is it known that Mars had hafnium - 187 ?那么是如何知道火星有铪 -187 的 呢 ?This activator is acyl amine - the hafnium activator that ether is a foundation.该催化剂为酰胺 - 醚为基础的铪催化剂.Chemical form of hafnium is perchlorate or nitrat...
Multileaf collimator ( MLC ) is the indispensable equipment of IMRT.作为IMRT的必备设备,电动多叶光栅 ( MLC ) 有着举足轻重的作用.Training simulator system for photoelectric collimator is designed for the manual operation of photoelectric collim...