back spindle

基本解释

For the power in case of a power failure, back electromotive force of a spindle motor can be utilized.
對於在電源故障情況下的電力，可利用主軸電機的反電動勢。
In 1817, another British Roberts adopted with round 4 wheel mechanism and back to change spindle speed.
1817年，另一位英國人羅伯茨採用了四級帶輪和背輪機搆來改變主軸轉速。
Mature larvae about 10 mm long, yellowish green, 2 Bradley, abdominal enlargement, section 4-5, it was the whole spindle body, and stretch back hip enough.
老熟幼蟲躰長約10毫米左右，黃綠色，兩頭尖細，腹部第4-5節膨大，故整個蟲躰呈紡鎚形，竝且臀足曏後伸長。