freeboard
freeboard是什么意思，
freeboard怎么读
语音:
英音
['fri:ˌbɔ:d]
美音 ['fri:ˌboʊrd]
n. 干舷；净空；超高
用作名词(n.)
- Machinery casings may, however, be exposed if there are no openings giving direct access from the freeboard deck to the machinery space.
然而，如果没有提供从干舷甲板到机舱的直接通道，那么机舱围壁应该是露天的。 - The low freeboard and the shallow draught made the vessel vulnerable to swamping, and it would roll heavily on anything more than moderate waves.
低干舷和浅吃水度让船只在湿沼地带很脆弱，它会在任何比一般海浪猛烈的海水条件下剧烈翻滚。
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