Brown granulated sugar was decolorized by sodium metabisufite and composite macromolecular flocculant.研究了重硫氧与复合高分子絮凝剂对复溶赤砂糖脱色的效果.Comparing with traditional flocculant the secondary pollution wasand the bioflocculant is s...
Sabres rasped from scabbards and the horsemen spurred forward.马刀在刀鞘里咔嗒作响，骑手催马向前。The horsemen reined in and shouted at the men behind to turn back.骑手们勒缰停住，对身后的人大嚷，让他们回去。But just then Porsena's horsemen dashed towards...