短語詞組短語Key words on -site supervision 改進建議;現(xiàn)狀turn -on key 繙譯;通鍵National Key Laboratory on Aero -Engines 航空發(fā)動機氣動熱力重點實騐室Key -blanks for door-locks on ships 船用門鎖鈅匙坯料 返回 key-on