综采工作面工程质量标准化中的“三直”是指煤壁直、支架直、溜子直。()
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A burner responsible for producing black smoke in an automatic auxiliary boiler, would be
A. defective solenoid valve
B. dirty fuel nozzle
C. grounded high tension lead
D. faulty ignition cable connector
These include deck machinery such as mooring equipment, anchor handling equipment, cranes
A. boilers
B. bow thrusters
C. stabilizers
D. hatch covers
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