typer

If you're actually not a good Mandarin typer, my apologies.

如果你真的是因为中打不好，歉。

A kind of new typer mixing reacter with an injection tube and a baffled chamber for producing calcium superphosphate was introduced.

介绍了由一个喷射管和一个折流室构成的用于普钙产的新型混合反应器。