检修工作如不能按计划工期完工,必须由()办理工作延期手续。 工作签发人。 工作许可人。 工作负责人。 工作组成员。
The humidifier’s valve of air-conditioner should be (), when the temperature is 5~8°C in the winter. decreased。 increased。 fixed。 closed。
对停电设备的哪些部位应装设接地线?
In the management of the shafting, because() carry heavy load and caused high temperature easily, it should be paid attention. the bearing near to the diesel engine。 the intermediate bearing near to the thrust bearing。 the intermediate bearing near to the sterntube。 the bearing located at the middle of the diesel engine and the sterntube。
在正常情况下,鼠笼式电动机允许在冷状态下起动2~3次,每次间隔时间不得小于() A.15min。 B.10min。 C.5min。 D.3min。
以下为项目合同的终止的原因,哪一项是错误的?()