Plug-in electric hybrids give off less exhaust than gas guzzlers. And when they're running on battery power, they generate no fumes at all. But there's a catch.

插电式混合动力电动车排放的废气要比油耗大的车少，而且在使用电池能时不会产生任何浓烟。

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The utility model is mainly formed by the connection of a movable lock catch (2) and a fixed lock catch (6) via a pin roll (5). The movable lock catch is provided with a lock tongue plug jack.

它主要由活锁扣片（2）和死锁扣片（6）通过销轴（5）连接构成，在活锁扣片上有一锁舌插孔。

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Another thing to think about: if plug-in electric cars catch on it will mean greater demand for electricity, less demand for gas.

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And the Chevrolet Volt plug-in hybrid has rebounded from the they-catch-on-fire debacle, with sales of 1, 462 in April.

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