Wofatit
离子交换树脂
🗣️ 情景例句
We'll sign two originals, each in the Chinese and English language.
我们将要用中文和英文分别签署两份原件。
I practiced everyday for today's golf match.
我为了今天的比赛而天天练习。
Yet a great many processes depending on such research are sought for with complete secrecy until the stage at which patents can be taken out.
然而，依赖这种研究的很多工艺程序是在完全保密的情况下进行的，直到可以取得专利权的阶段为止。