“open joist”的概念、定义、翻译、参考文献-科学参考

单词	open joist
释义	open joist 露明搁栅
随便看	four-vertex theorem four vidicon camera four-wave mixing four-wave sum-mixing four-way four-way box four-way branch four-way change-over valve four way cock four-way cock four-way connection four-way control four-way iron plug four-way jack four-way joint box four-way junction four-way junction box four way launching four-way leveling four-way piece four-way pipe four-way plug valve four-way radar surveillance four-way reinforcing four-way rotational crossing

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