Test plates with prepared welding cracks were made by designed experiment, the different areas of the test plates were detected by Metal Magnetic Memory (abbreviation MMM) method in different times.是什么意思_Test plates with prepared welding cracks were made by designed experiment, the different areas of the test plates were detected by Metal Magnetic Memory (abbreviation MMM) method in different times.在線(xiàn)翻譯_英語(yǔ)_讀音_用法_例句