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單項(xiàng)選擇題

A six-strand composite rope made up of alternate fiber and wire strands around a fiber core is called（）.

A.Spring lay
B.Lang lay
C.Cable lay
D.Alternate lay

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單項(xiàng)選擇題

A rope made of a combination of wire and fiber is known as（）.

A.independent
B.lang lay
C.preformed
D.spring lay

單項(xiàng)選擇題

A permanent chain chasing system is used to（）.

A.clean anchor chain as it's hauled in
B.recover anchors which have lost their buoys
C.run and retrieve anchors
D.prepare anchor chain for inspection

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