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| 11. | If these were not removed the petroleum products would have a foul smell and on combustion would produce |
| 不去掉这些物质，石油产品有股臭味，燃烧时会产生极具腐蚀力的气体，二氧化硫（SO2）。 |
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| 12. | engine runs in compression stroke and power stroke, the valves must close tightly on their seats to produce |
| 当发动机处于压缩行程和做功行程时，阀门必须紧紧地关闭以产生一个不透气的气封，以防止气体逃离燃烧室。 |
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| 13. | Second, even if it had, no natural gas could produce a state resembling spiritual possession. |
| 其次，即使曾经有过，也没有任何天然气体可以造成类似灵魂附体的状态。 |
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| 14. | into fine fodder by dried processes, Because the COD is lowered, the wastewater can be fermented to produce |
| 浓稠高温的酒精糟废水通过卧式螺旋卸料沉降离心机强化分离出酒精糟中的细粘颗粒，经脱水烘干后制成饲料，出水在COD已显著降低的情况下进行厌氧发酵制取沼气。 |
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| 15. | All cryogenic liquids produce large volumes of gas when they vaporize. |
| 所有低温液体在蒸发时都会产生大量的气体。例如，一个大气压下的单位体积的液态氮在68°F (20°C)时蒸发成694个单位体积的氮气。 |
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