頂桿框 的英文怎麼說
中文拼音 [dǐnggǎnkuàng]
頂桿框
英文
ejector box-
Hollow structural sections ( hss ) are commonly used as bracing members insteel - framed buildings or as web members in roof trusses
鋼管截面通常用作支撐鋼框架中的支撐構件或屋頂桁架中的腹桿桿件。
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