单项选择题
A.catenary B.step C.shock dip D.bight
A solution to overcome tripping defects is an arrangeme...
单项选择题A solution to overcome tripping defects is an arrangement of special plates on either side of the flukes,designed to set them in the correct tripping position. These special plates are called().
A.trippers B.stocks C.stabilizers D.palms
A shroud is().A.a light sailB.a topmast stayC.a sheetD....
单项选择题A shroud is().
A.a light sail B.a topmast stay C.a sheet D.standing rigging
A sheepshank is used to().A.keep a line from frayingB.j...
单项选择题A sheepshank is used to().
A.keep a line from fraying B.join lines of unequal size C.stop off a line D.shorten a line