It is shown by the engine performance tests and emission tests that LPG engine is completely able to meet the requirements of city omnibuses and trucks.
发动机性能试验与排放试验表明，该液化石油气发动机完全能够满足城市大型公共汽车和载货汽车的使用要求。
Nevertheless, VMAS has the advantage of low cost with reasonable accuracy, thus suitable for emission tests for in-use gasoline vehicles.
但VMAS仍有较好的测试准确性和较低的成本，适用于在用汽油车检测。
The performance and emission tests on two turbocharged diesel engines and a passenger car fueled with different fuel mixtures of diesel and biodiesel are conducted.
采用不同掺混比的生物柴油分别对两台进口增压中冷车用直喷式柴油机和一辆客车进行了经济性、动力性和排放特性台架试验及车辆道路试验。
On an engine test bed, two selected exhaust purifiers with DOC type experienced comparison emission tests; the results validated the sizable effects of the outer purifier means.
在发动机试验台架上，选择了两种DOC型尾气净化器，进行了排放比对试验，验证了机外净化的效果。
With the use of GPS, the running characteristics of Shanghai buses were investigated, meanwhile, one typical in-use diesel bus was selected to do on-road emission tests with the use of SEMTECH-D.
利用GPS和SEMTECH-D车载排放测试仪测量了上海市公交车行驶工况和公交柴油车在市区道路上的排放状况。
By a lot of performance tests, emission tests and combustion analysis tests, it has been proved that the new combustion system can give a good attention to power, economy, and emission capability.
大量的性能试验、排放试验和燃烧分析的结果表明，改进后的燃烧系统良好地兼顾了柴油机的动力性、经济性和排放特性。
By a lot of performance tests, emission tests and combustion analysis tests, it has been proved that the new combustion system can give a good attention to power, economy, and emission capability.
大量的性能试验、排放试验和燃烧分析的结果表明，改进后的燃烧系统良好地兼顾了柴油机的动力性、经济性和排放特性。
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