gas persistent的意思|示意

Some areas should be kept secure as a failsafe because mustard gas can be very persistent in the environment, he warned.

部分地区必须采用故障保险机制，因为芥子气在环境中可以长久的存留。

Thee persistent haze weather, around the introduction of a number of measures to improve air quality, such as vehicles, the elimination of old vehicles, replacing oil by gas and so on.

针对持续的雾霾天气，各地出台不少措施来改善空气质量，如限制车辆出行，淘汰老旧车辆，以气代油等等。

In effect, bond market investors are slamming down on the gas pedal while Banks, burdened by persistent regulatory demands, still have their foot on the brake.

实际上，尽管债市投资者在猛踩油门，但受困于严苛监管要求的银行，仍然在踩刹车。