The magnetic field sensor for weld nuts detects not only metal but it also replaces the location bolt.
用于焊接螺母磁场传感器检测，不仅金属但它也取代了位置螺栓。
On the bridge installation, should first of all in the site location, the bridge sections are connected into a whole with preloaded bolt.
对这种桥架的安装，应首先在安装工地选好地段，把几段桥架用预装螺栓连接成一个整体。
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。
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。
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