Monitortng and defeet-detecting in dynamic state are performed during the tensile test of elevator links by means of a 2-channel sonud remission instrument.是什么意思_Monitortng and defeet-detecting in dynamic state are performed during the tensile test of elevator links by means of a 2-channel sonud remission instrument.在線(xiàn)翻譯_英語(yǔ)_讀音_用法_例句