emission of nitrogen  氮素排放量

emission of nitrogen and phosphorus  氮磷减排

reduction of emission of extraction tail gas  减排

standards of emission  排放标准

catalytic removal of nitrogen oxide  氮氧化物催化消除

oxide of nitrogen  十五期间

removal of nitrogen oxide  氮氧化物脱除

ACOUSTIC EMISSION OF ROCK  岩石声发射; 岩体声发射

amount of emission reduction  减排量

Amplification by Stimulated Emission of Radiation  受激辐射放大

Amplified spontaneous emission of gold atom  金原子放大自发辐射

angle of emission  发射角

Assets of emission rights  排放权资产

audio emission of coal rock  煤岩声发射

Auto emission standards  汽车废气排放标准

class of emission  发射等级; 发射类别

CO2 emission of soil  土壤呼吸量

coefficient of emission  放射系数

collective effects in the gluon emission of string  弦发射胶子的集体效应