Mr salkeld said that any incinerators that were introduced would have to comply with the most stringent standards to reduce harmful emissions 苏启龙说任何引入的焚化设施均须符合最严格的标准，以减少排放有害气体。
At the time when technology means ever more harmful carbon in the air we breathe , we need these forests now more than ever 当技术的确是的发展意味着我们会吸入更非常多，艺术设计多有害气体时，我们比任何时候更需要森林。
The contra - rotating axial local fan can be used extensively in the large digging face and long distance ventilation in the mine 该通风机可广泛应用于矿井大断面、长距离掘进巷道和具有有害气体及需要大风量的工作场所通风。
Air pollutants consist of particulates and gases . the former contain coal dust smoke , dust , ash and smoke while the latter contain so 空气污染物大致可区分为固体微粒与有害气体两大类，前者包括煤烟、灰尘、飞灰及熏烟，后者包括
The product is characterized by low cost , ease of operation , fast oil removal , ease of rinsing , no water quality requirement and no emission of toxic gas 本产品成本低操作简单除油速度快除油后易清洗不择水质不产生有害气体。
Work position & condition : vertical install , work temperature : - 25 - 55 , relative humidity 80 % , and no corrosiongases for the gauge 工作位置、环境：仪表垂直安装工作环境温度- 25 - 55 ，相对温度不大于80 % ，并且周围空气中不含有腐蚀仪表的有害气体。
1 this system is used for the chemical laboratory and its functions to remove harmful vapors from the exhausted air by means of water or specified reagent dilution 化学实验室排气系统需要有空气净化塔，通过水和特殊试剂对排气中有害气体进行洗涤。
Laboratory fume cupboards constitute an essential component for any laboratory , it can exhaust the harmful gas , particle , then protect the safety of staff in the lab 通风柜是实验室里最重要的设备之一,能有效的排除实验室里的有害气体,颗粒,保护实验室工作人员的安全
When connector is totally mated , convex platform of pin is fully fitted with horn mouth of socked insert in order to protect it from dust , liquid and harmful gas 当连接器完全插合后，插针的1台与插也安装板的喇叭完全吻合，可心目外界的灰尘、液体、有害气体的侵入。
Laboratory fume cupboards constitute an essential component for any laboratory , it can exhaust the harmful gas , particle , then protect the safety of staff in the lab 通风柜是实验室里最重要的设备之一,能有效的排除实验室里的有害气体,颗粒,保护实验室工作人员的安全
