A、the falls from unhooking if the releasing gear is operated accidentally while the boat is being lowered
B、operation of the release lever until the boat is waterborne
C、the falls from rehooking after they have been released
D、accidental unhooking when the falls become slack
更多“Preventer bars are fitted on lifeboat releasing hooks to prevent（）.”相关的问题
A、the falls from unhooking if the releasing gear is operated accidentally while the boat is being lowered B、operation of the release lever until the boat is waterborne C、the falls from rehooking after they have been released D、accidental unhooking when the falls become slack
A、Lashing bars, twist locks, bridge plates and bridge fittings are tools used for lashing containers. B、Twist locks, bridge plates, bridge fittings and lashing bars are tools used for lashing containers. C、Twist locks, lashing bars, bridge fittings and bridge plates are tools used for lashing containers. D、Lashing bars, bridge fittings, bridge plates and twist locks are tools used for lashing containers.
A、and preventer have equal stress B、stronger than the preventer to minimize the danger of separation C、take a lighter load than the preventer as a safety factor D、take the stress in case the preventer parts
A、close and seal around the drill pipe B、close and seal around casing C、cut off pipe inside the preventer stack D、close and seal around drill collars
A、foo.notify（）； B、bar.notify（）； C、foo.notifyAll（）； D、Thread.notify（）； E、bar.notifyAll（）； F、Object.notify（）；
A、 foo.notify（）； B、 bar.notify（）； C、 foo.notifyAll（）； D、 Thread.notify（）； E、 bar.notiFYAll（）； F、 Object.notify（）；
A、A. Int foo = （int） Math.max（bar）； B、B. Int foo = （int） Math.min（bar）； C、C. Int foo = （int） Math.abs（bar）； D、D. Int foo = （int） Math.ceil（bar）； E、E. Int foo = （int） Math.floor（bar）； F、F. Int foo = （int） Math.round（bar）；
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