However, the auxiliary lock is not equipped with tow haulage equipment, so double lockage tows require special pull boat assistance.
但是，辅助船闸没有牵引设备，因此双闸拖轮需要有特殊的牵引船协助。
To the door operator having synchronous door knife must ensure that get auxiliary door lock after close the door knife.
对于同步门刀门机必须保证收刀后，再接通副门锁以确保电梯安全运行。
There are 68 types of rooms, equipped with central air-conditioning and electronic door lock systems, and fire control center, using solar hot water systems and electric auxiliary heating device.
内设中央空调和电子门锁系统以及消防监控中心，采用太阳能供热水系统及电辅加热装置。
应用推荐