This paper describes the relationship between the height of pollutant emissions and the maximum ground-level concentration.

叙述了对污染物排放高度和最大落地浓度的关系。

youdao

There's a lag phase, and there's a slow rise to an intermediate level of antibody concentration.

有一个迟滞期，抗体浓度缓慢上升至中间水平。

youdao

When initial repairs are inadequate, therefore, it is not because the mechanics lack competence; rather, there is clearly a level of focused concentration that complex repairs require.

因此，初次修理的不足并不是因为技工缺乏能力；更确切地说，很明显复杂的修理需要一种高度集中的能力。

youdao

Now,he thinks short is better. "I've gotten researchers telling me that you don't realize is how long someone can have a high level of concentration.

VOA: standard.2010.03.26

That decision creates a quiet and a level of concentration worthy of the moment.

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"We were not capable of the right level of concentration, " added Wenger.

BBC: Arsene Wenger laments 'poor performance' by Arsenal

The level of concentration in water had a "negligible effect" on people's uptake of the fluoride ion - responsible for increased risk of fractures, they said.

BBC: Fluoride 'does not cause fractures'