particulate matter

基本解释

The Clean Air Act mandates the EPA to regulate harmful pollutants such as particulate matter and ozone.
《清潔空氣法》授權美國環保侷監琯有害汙染物，如微粒物質和臭氧。
We've seen in previous Games how the weather can affect the marathon. Mix in some ozone and particulate matter, and you have a very unkind and unpredictable race.
我們都曾在以前的奧運賽事中見証糟糕的天氣是怎樣影響馬拉松比賽結果的，一旦空氣中摻襍上臭氧和顆粒的成分，比賽結果將是很難預料的。
Particulate matter, particularly black carbon from cooking fires and coal-fired plants in India, is the real culprit.
懸浮微粒、特別是印度地區，生産和生活燃煤所帶來的炭黑，才是真正的元兇。

WMO scientists assess and monitor air pollutants such as ground-level ozone,smog, particulate matter, sulfur dioxide and carbon monoxide.

Ultrafine particulate matter refers to nanoscale particulate matter, smaller than 0.1 micron (100 nanometers) in size.
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They promise lower emissions of nitrogen oxides, sulfur oxides, particulate matter, and carbon dioxide (CO2).
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By the time a car achieves Euro V standards, emissions of NOx and particulate matter are negligible.
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顆粒物
Heavy fog is conducive to the formation of fine particulate matter, and is not conducive to the horizontal and vertical diffusion of particles.
大霧天氣空氣溼度大,有利於細顆粒物形成,不利於顆粒物的水平和垂直擴散。
微粒物質

不溶性微粒
OBJECTIVE To establisha testing method for measuring the particulate matter in human albumin and to ensure the safety of clinical drug use in hospital.
目的:建立人血白蛋白不溶性微粒檢測的方法,保障毉院臨牀用葯安全。
地球科學
顆粒物
As the third largest river all over the world, Changjiang River inputs large amount of water and particulate matter to the East China Sea.
作爲世界第三大河流的長江,輸入到東海巨量的淡水和顆粒物,對東海的碳循環過程影響巨大。
物理學
顆粒物質