增加了双气囊，自动安全带换成了普通手动型。
Dual air bags were added and the automatic seatbelts were replaced with common manual type.
最初，第一艘攻击型潜艇上装载有一个木制手动升降柄和皮革爆炸管，爆炸管用来把炸药用木钉固定在舰船上。
In the beginning, the first attack subs consisted of a man hand-cranking away in a wood and leather suicide tube while attempting to attach explosives to a battleship using a wooden screw.
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。
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.
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