检查跟键反射时，最好使病人跪在椅子上，双脚及踝伸出椅子边缘。
Achilles reflex is carried out most satisfactorily when the patient kneels on a chair and extend his feet and ankles over the edge.
此电机的电机轴两端伸出分别同一风叶和一皮带轮通过键槽和键相 配接固定；
Two ends of the motor shaft of the motor respectively extend to match and fix with an impeller inducer and a belt pulley through a key slot and a key.
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