词汇	emission edge
释义	emission edge 发射界限
随便看	compound document service compound donghong mixture Compound Dongju compound doping Compound double die head plastic extruder compound doublet compound doubling time compound dracorhodin enema compound draft gauge compound dredger compound drift of gravimeter compound drilling compound drink Compound Dripping Pill of Danshen compound drive Compound drive system compound driving structures compound dropsy injection compound dunes compound duple compound duple meter compound duple time compound dust collector compound duties compound duty