单词 | crosstree |
例句 | DEFINITIVE EXAMPLES 权威例句〔jack〕A support or brace, especially the iron crosstree on a topgallant masthead.铁横桁:撑杆或支柱,尤指上桅桅顶的铁横桁美国传统〔trestletree〕One of a pair of horizontal beams set into a masthead to support the crosstrees.桅杆纵桁:两根插入桅顶的水平梁子中的任何一根,用于支撑桅杆横顶美国传统 |
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