bolt release

基本解释

Release discharge bolt to discharge the retained water if the pump will not be used for long.
长期停止使用时，应打开放水螺塞，将泵内的剩水排尽。
When the proper key is inserted, all the levers are raised to the same height, enabling the bolt pin to release the bolt.
当正确的，关键是插入，所有的杠杆提高到相同的高度，使螺栓针释放螺栓。
A card reader at the lock location reads the code and sends the information to a computer, which sends a signal to release the bolt if the code is correct.
阿锁的位置在读卡机读取的代码和发送信息到电脑，这发出了一个信号，释放螺栓如果代码是正确的。