THE MAGNETIC LEAKAGE FIELD INSIDE AND OUTSIDE THE SLOT ON THE CYLINDRICAL SURFACE OF A DISC CAUSED BY THREADING-BAR TECHNIQUE是什么意思_THE MAGNETIC LEAKAGE FIELD INSIDE AND OUTSIDE THE SLOT ON THE CYLINDRICAL SURFACE OF A DISC CAUSED BY THREADING-BAR TECHNIQUE在線(xiàn)翻譯_英語(yǔ)_讀音_用法_例句