Etolizing
多孔粉末烧结零件电解覆层法
🗣️ 情景例句
in the conference room.
在会议室。
After you think it over,please let me know what you decide.
在你考虑它以后，请让我知道你决定什么。
So far, no man has travelled farther than the moon, but spaceships without people have reach other parts of the universe.
到目前为止，尚未有人到过比月球更远的地方，但无人驾驶的宇宙飞船已到达过宇宙的其它地方。