It is necessary to separate the emission level of power system and customers.

区分电力系统中系统侧与用户侧谐波发射水平十分必要。

youdao

Air pollution is quite serious in China today due to high total pollution exhaust emission level.

我国大气污染严重， 污染废气排放总量处于较高水平。

youdao

Sunflower oil has low fumes emission level than the other three, the trend of oil fumes concentration is stable.

葵花籽油与其他三种食用油相比，油烟排放水平较低，油烟浓度变化趋势较平稳。

youdao

Absorption is just the opposite of emission, so instead of starting at a high energy level and dropping down, when we absorb light we start low and we absorb energy to bring ourselves up to an n final that's higher.

吸收就是发射的逆过程,与从一个高能量到低能量不同，当吸收光时，我们从低能量开始,吸收能量到一个更高的能量。

麻省理工公开课 - 化学原理课程节选

This sets a non-compulsory emission level, but allows city authorities to order offending facilities to make improvements.

CNN: Warning -- this garbage is dangerous

But like the emission level set earlier, this is just a guideline -- a number to indicate when swift action may be required.

CNN: Warning -- this garbage is dangerous

Increasing LIHEAP subsidies could raise the overall cost of achieving any given level of emission reductions, because it would somewhat offset the price signals necessary to motivate households to undertake low-cost reductions.

FORBES: Carbon Tax Getting Serious Consideration As CBO Seeks To Address Regressiveness