SPECIAL FEATURES OF BLADES AND BLADE ROOTS CONCERNING HIGH-CAPACITY STEAM TURBING UNITS AS WELL AS ULTRASONIC EXAMINATION METHOD THEREOF是什么意思_SPECIAL FEATURES OF BLADES AND BLADE ROOTS CONCERNING HIGH-CAPACITY STEAM TURBING UNITS AS WELL AS ULTRASONIC EXAMINATION METHOD THEREOF在線(xiàn)翻譯_英語(yǔ)_讀音_用法_例句