pentagonal section五边形: pentagon截面: section; cross section; cros ...平行四边形截面: parallelogram section镶角多边形截面风洞: wind tunnel with filletst形截面: t-section下载手机词典可随时随地查词查翻译关注微信公众号：chachacidian，回复:五边形截面，即可在微信中查询翻译
