Water ballast
Wa´ter bal´last
| 1. | (Naut.) Water confined in specially constructed compartments in a vessel's hold, to serve as ballast. |
| 单词 | water ballast | |||
| 释义 | Water ballastWa´ter bal´last
water ballastwater ballast[′wȯd·ər ‚bal·əst] |
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