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.
对于在电源故障情况下的电力，可利用主轴电机的反电动势。
In 1817, another British Roberts adopted with round 4 wheel mechanism and back to change spindle speed.
1817年，另一位英国人罗伯茨采用了四级带轮和背轮机构来改变主轴转速。
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.
老熟幼虫体长约10毫米左右，黄绿色，两头尖细，腹部第4-5节膨大，故整个虫体呈纺锤形，并且臀足向后伸长。