Ninopterin
[化] 9-甲叶酸
🗣️ 情景例句
I can't help you now, I'm on my coffee break.
我现在帮不了你，我正在休息、喝咖啡。
How long does it take to get there?
到那里要多少时间？
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。