通用沃兰达（在欧洲称欧宝）这类带有增程器，依靠电动发动机提供动力的电动汽车，充电可以依靠外部电源或者车载内燃机进行。

Range-extenders like GM’s Volt (the Ampera in Europe) are powered by an electric motor that can be recharged either from the mains or by an on-board internal-combustion engine.

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通用沃兰达（在欧洲称欧宝）这类带有增程器，依靠电动发动机提供动力的电动汽车，充电可以依靠外部电源或者车载内燃机进行。

Range-extenders like GM's Volt (the Ampera in Europe) are powered by an electric motor that can be recharged either from the mains or by an on-board internal-combustion engine.

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目的：探讨增率汤（中药合剂）与心宝丸（中药丸剂）治疗缓慢心律失常疗效对比。

Objective: It is to contrast the treatment effects of Zenglutang and Xinbao pill on the patients that suffer from slowness arrhythmia.

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