Today, China and India are engines, still facing complex and difficult problems, but driving motors of growth.

今天，中国和印度是发动机，虽然仍存在复杂困难的问题，但却驱动着增长的列车。

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What is the difference between a two-stroke and a four-stroke engine? Most chain saws and boat motors use two-stroke engines.

二冲程和四冲程发动机的区别： 大多数链锯和摩托艇使用的是二冲程发动机。

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Like carmakers, they are trying to combine internal-combustion engines and electric motors to save fuel.

和汽车制造商一样，他们正试图将内燃机引擎和电动机结合起来以便节省燃油。

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It was at the old Buckinghamshire RAF base after WWII where the government established its guided weapons programme, producing solid motors and liquid engines.

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Hybrids need to be equipped with larger battery packs, smaller and more fuel-efficient engines and a "two-mode system" that uses a pair of electric motors that propel the car at lower speeds.

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On the other hand, this conflation makes far more sense in the long term, as our electrical grid becomes more sophisticated, and as electric vehicles begin the inevitable switch from internal combustion engines to electric motors or some other renewable source of power.

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