The exhaust gas ingredients of pulse engines, with five different combustion chamber volumes, throttle valve at small, middle and wide opening positions respectively, are tested.

对五种不同燃烧室体积的脉冲发动机在小、中和大油门开度三种供油条件下测定其排放物。

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Other familiar examples include gas control valves on cookers, small valves fitted to washing machines and dishwashers, safety devices fitted to hot water systems, and valves in car engines.

其他熟悉的例子包括对灶具燃气控制，小阀门安装在洗衣机和洗碗机，安全装置安装在热水系统，在汽车和发动机排气阀。

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At present, except the small proportion of the pure natural gas engines, CNG vehicle powered device is basically flexible-fuel engine that can use natural gas or gasoline dividedly.

目前，我国的CNG汽车动力装置，除比例很小的纯天然气发动机之外，基本上是可以分别燃用天然气和汽油的两用燃料发动机。

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It really is extraordinarily easy to see the connection here: decades of higher gas prices have led to manufacturers producing more efficient engines and to consumers preferentially purchasing small engined cars.

FORBES: A Gas Tax Is Much, Much, More Efficient Than The CAFE Standards So Why Have We The CAFE Standards?