PM2.5指直径小于等于 2.5 微米(micrometer)的悬浮粒子(airborne particles),中国的空气质量标准(air quality standards)规定,pm2.5标准值为24小时平均浓度小于75微克/立方米被认为是达标的(is deemed...
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... airborne particles 大气尘 ; 悬浮粒子 ; 大气尘粒 suspended particles 悬浮颗粒物 ; 悬浮粒子 ; 悬浮颗粒 rock particles 岩石颗粒 ...
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airborne noise 空气传声 airborne particles 大气尘粒[来自自燃界或人为产生的固体或液体微粒物质,形成大气杂质] airborne pollutant 空气中的污染物,风载污染物 ..
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... 从而达到笑过之后能够有所思考的目的。 » [object Object] 浮尘 » Airborne particles 拖把设计特点 » Mop design features ...
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airborne particles concentration 悬浮粒子浓度
Sampling of airborne particles 气载颗粒取样
different diameter airborne particles 不同粒径颗粒物
test method for airborne particles 悬浮粒子测试方法
airborne suspended particles 空气悬浮颗粒
With the development of such industries as electronics, precision optical machinery processing, war industry, medical treatment, medicines and food production, it is increasingly demanded to control the airborne particles and germ particles in air.
随着电子、精密机械加工、军工、医疗、药品和食品生产等行业的发展,对空气中尘埃粒子和细菌微粒的控制要求越来越高。
参考来源 - 激光尘埃粒子计数器的国产化研究与开发·2,447,543篇论文数据,部分数据来源于NoteExpress
The level of emissions they cause will depend on how the electricity to run them is generated, while brakes, tyres and roads all create tiny airborne particles as they wear out.
它们产生的排放量将取决于驱动它们的电力是如何产生的,而刹车、轮胎和道路在磨损时都会产生微小的空气颗粒。
Burning peat and vegetation produces smoke rich in tiny airborne particles.
燃烧的泥炭和植被产生的烟雾中充满微小的尘埃粒子。
The smaller sorts of airborne particles are alone thought to cause 380,000 premature deaths in Europe every year.
据认为,在欧洲单是空气播散的微小颗粒物每年就造成380,000例早产儿死亡。
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