heavy stringer加强: strengthen; enhance; augment ...桁条: stringer; batten; prulin; pu ...加强桁材: additional girder桁条加强壳: stringer-stiffened shell桁条加强蒙皮: stringer stiffened skin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:加强桁条,即可在微信中查询翻译