Preparative gas chromatography
[化] 制备气相色谱法
🧩 词语组成解析
a. 准备性的, 预备性的\\nn. 预备, 准备, 预备信号
gas
[gæs]
n. 气体;[矿业] 瓦斯;汽油;毒气;
vt. 加油;毒（死）;
vi. 加油;放出气体;空谈;
int. 该死！（令人气愤的人应即被送毒气室处死）;
n. 色谱法\\n[化] 色谱法; 层析法
🗣️ 情景例句
If my wife takes a second job and leaves the kids in day care, we should be able to get the loan for a two storey place.
如果我的妻子做两份工，把孩子送去全托，我们就可以贷款买一栋两层的房子了。
Yes, we have done a little. But we have just started and have nothing to show you.
有，我们做了一些，但是因为我们才刚起步，并没有任何资料可以提供给你们。
Some of the bigger firms are engaged in researches which are of such general and fundamental nature that it is a positive advantage to them not to keep them secret.
某些大公司进行的研究属于一般和基础性的研究。因此不保密对他们才有利。