Pixe
[化] 质子激发X射线发射分析
🗣️ 情景例句
I'm trying to get together with her.
我想和她在一起。
If two men ride on a horse, one must ride behind.
两人同骑一马，必有一人在后。
Will you let us have the specifications?
规格说明书可以给我们吗。