cinder notch slag是什么意思

用法例句

Feasibility test on calcium removal of carbide slag supernatant and sulfur and phosphorus removal of sodium hypochlorite waste water;

电石渣上清液除钙,次钠工艺废水除硫磷项目的可行性试验

Fully closed circulating recovery process of carbide slag slurry supernatant;

电石渣浆上清液全部闭路循环回用工艺