单项选择题
A.boom B.lift C.raise D.tackle
A stopper used in securing the ground tackle for sea th...
单项选择题A stopper used in securing the ground tackle for sea that consists of a grab attached to a turnbuckle is a().
A.riding pawl B.buckler C.devil's claw D.locking ring
A splice that can be used in running rigging,where the ...
单项选择题A splice that can be used in running rigging,where the line will pass through blocks,is a().
A.short splice B.long splice C.back splice D.spindle splice
A snatch block would most likely be used as a().A.boat ...
单项选择题A snatch block would most likely be used as a().
A.boat fall B.fairlead C.riding pawl D.topping lift