Test method for free water and particulate contamination in mid - distillate fuels clear and bright numerical rating 中间馏分燃料粒子污染和游离水分的试验方法
Air quality . workplace air . gravimetric determination of particulate pollution deposits . rotating disk method 空气质量.工作场所的空气.悬浮粒子污染沉淀物的重量测定.旋转盘法
Hydraulic fluid power - particulate contamination analysis - extraction of fluid samples from lines of an operating system 液压流体动力.粒子污染分析.从工作系统的作业线上提取流体样品
Air quality . workplace air . personal or stationary sampling of the alveolar fraction of particulate pollution . separation method using a 10 mm cyclone 空气质量.工作场所空气.粒子污染气泡部分个人取样或固定取样.使用10毫米旋风分离器的分离法
A both governments have commenced joint topical studies on acid rain , nitrogen dioxide , photochemical smog and particulates to identify the sources of problem that affect air quality in the pearl river delta region and to recommend effective mitigation measures 一粤港双方已联合展开有关酸雨二氧化氮光化烟雾和粒子污染及其防治的专题研究,以找出影响珠江三角洲地区空气质素问题的根源,并建议有效的防治措施。
Both governments have commenced joint topical studies on acid rain , nitrogen dioxide , photochemical smog and particulates to identify the sources of problem that affect air quality in the pearl river delta region and to recommend effective mitigation measures (一)粤港双方已联合展开有关酸雨、二氧化氮、光化烟雾和粒子污染及其防治的专题研究,以找出影响珠江三角洲地区空气质素问题的根源,并建议有效的防治措施。