In a multiple - step procedure, the extracted mucopolysaccharide is esterified to mucopolysaccharide polysulfate.经过一系列多步骤的程序, 萃取的粘多糖被酯化成多磺酸粘多糖(MPS).There were much high esterified pectin the, which caused cloudy and sedi...
后来在他迷迷糊糊 、 似睡非睡的状态中,从外面传来一阵非常凄惨的猫儿叫春的声音.And then there came, mingling with his half - formed dreams , a most melancholy caterwauling.他家的猫一到夜里就叫春, 真烦人.His cat calls out all night, which is rather disturbing.宋代, 桃符由桃木板改为纸张...
This depends on the estimation of the temperatures generated by frictional heat.它取决于摩擦热所引起的温度估算.Frictional behavior is modified by colloidal silica or starch deposition.耐磨损性能可以通过在织物上沉淀胶状硅或淀粉一类物质而得到改善.The frictional dissi...