形态有片、带、环、圈丝、棒材、颗粒、粉末等。

Patterns have films, belt , ring , ring wire, rod, particle, powder and so on.

youdao

形态有片、带、环、圈丝、棒材、颗粒、粉末等。

Patterns have films, belt , ring , ring wire, rod, particle, powder and so on.

youdao