The speed of the machine may be regulated to pace the packing operation.
机器的速度可调节到与包装速度同步。
2
Rectangular wave of arbitrary shape shall be output, change rate of AC plus-minus shall be regulated arbitrarily, and the speed of exchanges over zero shall be very quick.
要求此电源能输出任意形状的矩形波，交流正负极性比率可任意调节，交流过零速度极快。
3
James Watt's flyball governor (1769) regulated steam flow to a steam engine to maintain constant engine speed despite a changing load.