Original PM 12 / Model 12 submachine guns featured separate manual safety and fire mode selector, both being made in the form of the cross-bolt buttons.

原件日下午12 / 12型冲锋枪功能的单独的手动安全和消防模式选择，无论是在形式的跨螺栓按钮了。

In Refuse Pit, the jailers cut down over 140 prisoners with submachine guns, poured gasoline on the bodies, and burned them, but a handful escaped in the fire and chaos.

在渣滓洞，狱方用机枪打死了140多名犯人，把汽油浇在尸体上焚烧。有几个人在火海和混乱中逃生。

Experience showed the Germans that the average submachine gun was too muscular for reliable accuracy within a thousand feet, which made it sketchy in close combat situations.

德国人的经验表明，一般的冲锋枪太过笨重，一千英尺内无法保证精准度，不利于近距离战斗。

During early 1980s the basic design was improved with the introduction of the Model 12s submachine gun, which had improved safety arrangement and several other minor changes.

在基本设计与示范12秒冲锋枪，这是有助于提高安全性的安排和其他一些小的改动80年代初引入改善。