我打开拖车的门，第一次看到了海军陆战队的机修车间。
When I opened the doors, I had my first look ever at a machine shop.
快速卷帘门是快速升降的无障碍隔离门，主要作用是起快速隔离的作用从而保证车间空气质量无尘等级。
Fast shutter door is a barrier for the rapid rise and fall of the barrier, the main role is to play a role in the rapid isolation to ensure that the air quality of the workshop clean grade.
职员工进、出车间打卡必须佩戴厂牌，进出厂门必须佩戴厂牌，违者每人每次罚款20元。
All employees must wear company card during working hours, in and out company also need to wear company card. Otherwise fine RMB20.00.
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