Every hydraulic system consists of three pitch control cylinders and three pitch safety cylinders, distributed inside hub.
每套液压系统配备三只控制油缸和三只安全油缸，布置在轮毂内。
Every hydraulic system consists of three pitch control cylinders and three pitch safety cylinders, distributed inside hub.
每套液压系统配备三只控制油缸和三只安全油缸，布置在轮毂内。
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