扩径导线与线夹压接时,应用相应芯棒将扩径导线中心所压接部分空隙()。
遇有6级以上大风时,装卸工组应停止在离开地面()以上地点进行高处作业。
A. lm
B. 2m
C. 2.5m
D. 3m
发动机冬季温度长时间过低,极有可能是()没装,造成冷却水始终大循环。
A. 风扇
B. 百叶窗
C. 节温器
D. 温控开关
When restarting a heavy fuel diesel engine that has been stopped for some time, the engine should()
A. increase the starting air pressure
B. use a higher than normal cranking speed
C. increase the fuel injection pressure
D. use a fuel having a lower ignition temperature