石油煙黑 的英文怎麼說
中文拼音 [dànyóuyānhēi]
石油煙黑
英文
petroleum black-
However, as the emission levels of lpg vehicles and petrol vehicles meeting the euro iii standards or above are more or less the same and neither emit any smoke, the switch from petrol vehicles to lpg ones is not expected to result in a substantial improvement in air quality
由於現時符合歐盟三期或更高標準的汽油車,排放和石油氣車大致相若,而且同樣不會排放黑煙,因此汽油車轉為石油氣車對改善空氣質素的成效相對不大。
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