There is an electrical wiring inside accessory box, a reticle , still have jumper of a clavier .
附件箱内有一根电线， 一根网线， 还有一根键盘连接线。
The junction of bonding jumper should be clean and covered with conductive paste. And the tightening moment for bolt must fit with equipment wiring requirements.
接线搭接面确保清洁，涂抹导电膏，螺栓紧固力矩符合设备接线要求说明。
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