It analyzes the character of the current super-abrasive grinding wheel, looks into the advantages and foreground about brazed grinding wheel.
分析了超硬磨料砂轮的现状和特点，介绍了钎焊砂轮的卓越磨削性能和发展前景。
The variation in the foreground features a 50-watt engine and four-wheel drive.
在前台变化特征50瓦引擎和四轮驱动。
The variation in the foreground features a 50-watt engine and four-wheel drive.
在前台变化特征50瓦引擎和四轮驱动。
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