So there isn't air in the glass boxes?

那么玻璃瓶中没有空气了？

youdao

And abroad for large boxes of cold air separation of the main production base.

是国内外大型空分冷箱的主要生产基地。

youdao

And abroad for large boxes of cold air separation of the main production base.

是国内外大型空分冷箱的主要生产基地。

youdao