Nicopyrite
[化] 镍黄铁矿
🗣️ 情景例句
I don't want a dead end job.
我不想做没有前途的工作。
Enough is as good as a feast.
知足常乐。
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。