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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If Dr. Wang's previous studies are any indication, he will see that a test subject's striatum, a sort of communications hub inside the brain, has fewer dopamine receptors than the striatum of someone with normal eating habits.

FORBES: Food on the Brain

The folks clad in brown took us inside their largest sorting hub to find out.

ENGADGET: Inside UPS' Worldport: How a shipping titan moves 2,000 packages every 17 seconds

The upshot is that there need not be any single device inside the home that becomes a central media hub.

ECONOMIST: The digital home