Purifiying material  净化材料

Purifying Material Sponge  脱硫剂

core material and filter material joint anti-perme  心墙料－反滤料联合抗渗

material evaluation of gas standard material  气体标准物质的性能评价

material quota material  原材料定额

sphere composed of a power hardening material and a hyperelastic material  幂强化材料和超弹性材料组合的球体

2-Stage purifying silencer  二级净化消声器; 氩离子轰击(AIB)

advanced purifying treatment  深度处理

air disinfection-purifying device  空气消毒洁净器

air purifying  空气净化

Air purifying disinfector  空气净化消毒机; 空气净化消毒器

air purifying engineering  空气净化工程

air purifying equipment  空气净化设备

air purifying machine  空气净化机

air purifying preparation  岸桥工作计划; 空气净化剂

air-purifying disinfector  空气净化消毒机

air-purifying respirator  空气清净面具; 空气净化呼吸器

better purifying space  净化空间

biodiversity and self-purifying of water  生物多样性与水质净化