矿井灾害预防及处理计划由()组织通风、采掘、机电、地测、安监等单位的有关人员进行编制。
A. 通风部门负责人
B. 矿技术负责人
C. 生产部门负责人
D. 矿长
查看答案
Rotation of the steering wheel on the navigation bridge initiates oil pressure being applied to the steering gear rams by ().
A. regulating the oil flow with the six-way valve
B. moving the automatic differential valve
C. moving the receiving tele-motor which regulates the two-way valve
D. varying the angle of a tilting box or eccentricity of a floating ring
AT用()信道来告知AN其在前向业务信道上请求的传输速率以及前向业务信道上所选择的服务扇区。
2000毫升液体要求10小时内匀速输完,滴速应该是()
A. 30滴/min
B. 40滴/min
C. 50滴/min
D. 55滴/min
E. 60滴/mi