Cr—Mo—Cu system low alloy  Cr—Mo—Cu系低合金

High Efficiency and Low Emission  高效低污染

high-low-low temperature  中低低

high-low-low temperature process  中低低

LLWL (low-low water level)  低低水位

Low Emission  低排放; 低挥发性; 低辐射; 低泄漏; 填料; 弱发射; 低发射

low emission combustion  低污染燃烧

low emission composite injection technique  低排放组合喷射技术

low emission engine  低排放发动机

low emission engine setting  低排放发动机调整

low emission film  低辐射膜

low emission fume  低空烟害

low emission turbocharged engine  低排放涡轮增压发动机

low system tract  低水位体系域

Low-emission  低污染的; 低排放

low-emission film  低辐射膜

low-emission glass  低辐射玻璃

low-emission source  低污染源

low-emission technology  低污染技术