plug-in unit

基本解释

But the car will not burn gasoline to recharge the battery until the plug-in unit is exhausted.
但是这种汽车只有在充电设施耗尽后才会通过燃烧汽油为电池充电。
After a while he formed his own company, 3GJUICE, to produce a plug-in unit for the iPhone that incorporates the Chinese firm’s battery.
之后他便成立了自己的公司3GJUICE，在整合中国电池的基础上，专门为iPhone生产插换部件。
Additional, offer the development port of tripartite plug-in unit , through plug-in unit implementation and the each other of tripartite IM are connected.
另外，提供第三方插件的开发接口，通过插件实现与第三方IM的互通。

So Freeplay and Motorola have devised a range of plug-in pods that allow the FreeCharge base unit to talk to phones from different makers—including Nokia and Ericsson as well as Motorola.
ECONOMIST: MONITOR
While hybrid vehicles have been widely available for more than a dozen years, the market for plug-in electric vehicles (PEVs) has grown rapidly in the last 2 years, reaching more than 120, 000 unit sales worldwide in 2012.
FORBES: Worldwide Electric Vehicle Sales to Reach 3.8 Million Annually by 2020