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relays are electrically controlled devices that open or close electrical contacts to effect the operation of other devices in the same or another electrical circuit.
继电器是一种电气控制装置,用于开启或关闭电触点,使同一电路或另一条电路中的其他设备运行。
and if you see those metal bits there -- those are huge magnets that bend electrically charged particles, so it can measure how fast they're traveling.
如果你看到那里的那些小金属块 它们是巨型磁铁,用于弯折 带电粒子 使探测器能够测算出粒子运动的速度
the ssa is electrically connected and mechanically held secure in the 242-contact slot connector (consider a ssa with a retention mechanism interface) and
ssa 与 242 触点插槽连接器有电流连接,并被其机械地固定(考虑带有固定架接口的ssa ),并且
"battery means two or more cells which are electrically connected together and fitted with devices necessary for use, for example, case, terminals, marking and protective devices.
"电池组,是指用电路连接在一起的两个或多个电池,并安有使用所必需的装置,如外壳、终端、标记和保护装置等。