EFFECT OF USING SMALL AMOUNT OF LUBRICATING OIL AND COLD AIR COOLING ON THE QUALITY OF MACHINING SURFACE OF HIGH- SILICON ALUMINUM ALLOY是什么意思_EFFECT OF USING SMALL AMOUNT OF LUBRICATING OIL AND COLD AIR COOLING ON THE QUALITY OF MACHINING SURFACE OF HIGH- SILICON ALUMINUM ALLOY在线翻译_英语_读音_用法_例句