COSINE TRANSFORM ANALYSIS AND PATTERN RECOGNITION OF ULTRASONIC TESTING SIGNALS FOR THE HIGH TEMPERATURE ALLOY BARS WITH SMALL DIAMETER是什么意思_COSINE TRANSFORM ANALYSIS AND PATTERN RECOGNITION OF ULTRASONIC TESTING SIGNALS FOR THE HIGH TEMPERATURE ALLOY BARS WITH SMALL DIAMETER在線(xiàn)翻譯_英語(yǔ)_讀音_用法_例句