(安全壳)局部泄漏率试验 (containment) local leakage rate test
(安全壳)局部泄漏率试验 (containment) local leakage rate test
相关考题:
The scuppers should be plugged____ .A.only if fixed containment is not usedB.only if portable containment is not usedC.only if fixed containment drains are openD.whenever the vessel is being bunkered
单选题The scuppers should be plugged ().Aonly if fixed containment is not usedBonly if portable containment is not usedConly if fixed containment drains are openDwhenever the vessel is being bunkered
单选题架空煤气管气密性试验泄漏率标准为()A小于1%B小于0.5%C每小时平均泄漏率为1%