以减少挥发
To reduce volatilization
以上为机器翻译结果，长、整句建议使用 人工翻译 。
数千辆公交车正在升级换代，以使用更为清洁的燃料，另外加油站也在进行改造以减少汽油挥发。
Thousands of buses are being upgraded to burn cleaner fuels, and fueling stations are being modified to release less fuel gasoline into the air.
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