According to IMO Res A.761(20) Recommendation on Conditions for the Approval of Servicing Stations for Inflatable Liferafts,the liferaft should be subjected to a pressure holding test over a period of not less than one hour, during which the pressure drop will not exceed ____% of the working pressure.

发布于 2021-03-04 19:44:22
【单选题】
A 1
B 3
C 5
D 10

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