反差控制紫外线防护护目镜
ultraviolet contrast-control safety goggles
外防护层
external protective coating
External protection coating
Oil and Gas Pipeline
被动热防护特性
passive thermal protection performance
反射式热防护
Reflecting thermal protection
防护热板法
guarded hot plate apparatus
隔热防护服
insulation protective clothing
protective clothing for proximity fire fighting