事实上，每单位体积的燃油燃烧时，约需要有1万单位体积的空气通过滤清器。
In fact, each unit volume of fuel combustion, about 1 million to unit volume of air through the filter.
能燃烧，蒸气与空气形成爆炸性混合物，爆炸极限7% - 73%(体积)。
Can burn, vapor and air to form an explosive mixture, the explosion limit of 7%-73% (volume).
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。
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.
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