Parts of the machine were grinding together noisily.
机器零件摩擦发出刺耳的声音。
《牛津词典》
2
In order to guarantee surface precision of using locus shaping method machining optical parts, the factors of fine grindingmachine which affects surface error of part is theoretically analysed.
为了保证用轨迹成型法加工光学零件的面形精度，对精密磨削机床影响工件面形误差的因素进行了理论分析。
3
Rongzhao company specializing in the production, maintenance and sale of its grindingmachine spare parts and related auxiliary equipment.