petal-type cowling活瓣: valve; flap式: type; style整流罩: radome; trouser盔式整流罩: helmeted cowling铰接式整流罩: hinged cowling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:活瓣式整流罩,即可在微信中查询翻译