由于RFID卡尺寸的限制，RFID射频天线的小型化势在必行。

Antenna has to be miniaturized, because its size limited by RFID card.

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用游标卡尺，分别测量电机的轴径和起动器的孔径、键宽、键高等尺寸是否相同，如有差异，应及时同本公司联系，以求解决。

To measure the hole diameter, width and height of key by vernier caliper, if there is any discrepancy, PLS do not hesitate to contact us.

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尺寸检测条件：依据图纸，使用计量卡尺，注意检测人为误差。

Size check condition: Use the measure ruler based on the product drawing for check, and need note that the tolerance make by operator.

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