For improving the design reliability and efficiency of the stubble roller, visualized dynamic gap Angle was obtained though drawing blade moving track according to movement equation using ug - NX3.

为提高灭茬刀辊设计的可靠性和效率，基于UG - NX 3软件，根据运动方程绘制刀刃运动轨迹，形象直观的获取动态隙角。

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Sand core for the blade was made by hand drawing the pattern from core box. The way of core making is feasible on a medium scale production.

采用线切割的方法制作涡轮叶片砂芯芯盒，用该芯盒手工起模制作叶片砂芯。

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The dust collection member has an inlet provided in proximity to the outer periphery of the cutting blade for drawing and collecting dust.

集尘部件，所述集尘部件具有被设置成靠近所述切割刀片的所述外周边的开口，用于吸入和收集粉尘；

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"Drawing a mass down within the blade of the piston itself compresses the air, " he said.

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