lead block()
A、滑车
B、导向滑车
C、千斤索
D、底脚滑车
A、滑车
B、导向滑车
C、千斤索
D、底脚滑车
A、blocks have been overhauled B、hauling parts of two tackles are attached C、hauling part leads through the movable block D、hauling part leads through the standing block
A、blocks have been overhauled B、hauling parts of two tackles are attached C、hauling part leads through the movable block D、hauling part leads through the standing block
A、blocks have been overhauled B、hauling parts of two tackles are attached C、hauling part leads through the movable block D、hauling part leads through the standing block
A、Lowering it into a cradle B、Placing it in a desired position C、Spotting it with wash primer and red lead D、Two-blocking it
A、taut and leading forward B、slack C、leading out perpendicular to the centerline D、leading under the hull
A、which; has leaded B、which; has been leading C、that; has leaded D、that; has been leading