17. By regulation, cargo tanks must be filled with inert gas before and during what operation?
(A) Trimming
(B) Rolling
(C) Listing
(D) Crude oil washing

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統計: A(21), B(2), C(10), D(230), E(0) #2652701

詳解 (共 1 筆)

#4613372
原油洗艙需要注入惰性氣體才安全
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