“porthole”的概念、定义、翻译、参考文献-科学参考

单词	porthole
释义	porthole 汽门墙孔炮眼孔口
随便看	first attack first audit first azimuth method first backcross generation first batch first batch of newly-designed products first beater first bite first blow first-born first bottom first boundary volume problem of potential theory first bounded interval measure first break first breaker card first break time first brood of larvae first category gassy mine first category of commodities first category vessel first cause first choice first-class first-class cabin first-class certificate

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