The carbonate from calcium carbonate, if not remoyed by calcining may cause foaming in the reactors.碳酸钙中存在的碳酸根, 如果不经煅烧除去,会在反应槽中引起泡沫生成.Taixi anthracite with high quality calcining is also suitable raw material.宁夏太西煤只要控制好煅...
As the two charge distributions separate, leaving positive and negative sheaths.当两种电荷分布开始时, 就留下正离子鞘和负离子鞘.In addition, various precision spiales and metallic sheaths can be made.同时, 可承接各种精密轴、套类零件的加工制造.The signal character...
Souble Fab supernants were obtained through bacterial frozens and thawes.反复冻融细菌,获得可溶性Fab片段.The papers dubbed them ` The Fab Four '.报刊给他们起了个绰号叫‘四绝 ’.Textile fab impreg, ctd, cov nes; paintd canvas ( e . g. threatrica...
The progresses in the synthesis study of isoamyl isovalerate at home and abroad were reviewed.综述了国内外对异戊酸异戊酯的合成研究的进展情况.Isoamyl butyrate was synthesized by using potassium bisulfate as the catalyst.以硫酸氢钾为催化剂,正丁酸和异戊醇为原料合成了正...