Ohm The ohm is a unit of electrical resistance. One volt will cause a current of one ampere to flow through a resistance of one ohm.
欧姆 欧姆是电阻单位。1伏特的电压通过1欧姆的电阻能产生1安培的电流。

One-Line Diagram A one-line diagram is a schematic diagram of a three-phase power distribution system which uses one line to show all three phases. It is understood when using this easy to read drawing that one line represents three.
单线图 单线图是用一条线来表示三相电力分布系统的示意。，

Overcrank Overcrank is an alarm function provided with most generator sets that indicate that the generator set has failed to start.
盘车失败 盘车失败是机组的预警功能，表示发电机组启动失败，大多数机组都有这种功能。