为了制造火机的外壳，一部机器将黄铜材料的卷展开，并送入压力机器。

To make lighter cases, a machine uncoils brass from the scroll, putting it into a press.

youdao

为了制造火机的外壳，一部机器将黄铜材料的卷展开，并送入压力机器。

To make lighter cases, a machine uncoils brass from the scroll, putting it into a press.

youdao