The results reveal that extended soft contact leas wears carry a greater risk than daily-wear.
统计结果显示长戴型软接触镜比日戴型具有更大的危险性。
This method possesses high precision with leas accurate measurements, and is easy to be implemented.
该方法具有较高的计算精度，对系统的要求低，易于实现。
Imported ball bearing leas screw and linear guide rail have ensured a repeated positioning precision of the machine tool.
进口滚珠丝杠及直线导轨确保了机床的重复定位精度。
Imported ball bearing leas screw and linear guide rail have ensured a repeated positioning precision of the machine tool.
进口滚珠丝杠及直线导轨确保了机床的重复定位精度。
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