单选题船舶蒸汽总分配联箱上有通船舷的管路,主要是用于()。A应急时人工泄放蒸汽B安全阀开启时自动泄放蒸汽C厂修期间必要时由厂方供汽D蒸汽灭火用
单选题
船舶蒸汽总分配联箱上有通船舷的管路,主要是用于()。
A
应急时人工泄放蒸汽
B
安全阀开启时自动泄放蒸汽
C
厂修期间必要时由厂方供汽
D
蒸汽灭火用
参考解析
解析:
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