The blade according to claim 1 wherein the at least one part of the at least one spar bar which is housed in said shell is surrounded by a film of polyetherimide resin.是什么意思_The blade according to claim 1 wherein the at least one part of the at least one spar bar which is housed in said shell is surrounded by a film of polyetherimide resin.在線(xiàn)翻譯_英語(yǔ)_讀音_用法_例句