A cabinet or space containing the controls or valves for the fixed firefighting system must be().

A . posted with instruction on the operation of the systm B . ventilated and equipped with explosion-proof switches C . painted with red and black diagonal stripes D . equipped with a battery powered source of emergency lighting

时间:2022-11-09 18:47:02 所属题库:航海英语综合练习题库

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