单选题
发布日期:2021-03-22
eliminate navigational hazards by allowing the chain to lie along the harbor bottom
increase the anchor's reliability by providing a large catenary in the chain
permit the ship to maneuver in the stream while weighing anchors
prevent damage to the stern caused by swinging against the pier in the approach
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()both anchors.
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The anchors on the bow are known as().
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备双锚。()
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() are used to handle anchors and chains.
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