The emulsion acrylic glueing agent SL 407 was prepared with polymerization process of pre - emulsifying and whole dropping.采用预乳化全部滴加的聚合工艺,制备乳液型丙烯酸酯类水性台板胶.Beeswax acts as an emulsifying agent.蜂蜡起到乳化剂的作用。No colloid, surfac...
The principle and process flow of dewaxing using double membranes were described.阐述了食用油双膜法脱蜡工艺的技术原理及工艺流程.The carbon microfiltration membranes were prepared by pyrolysis of a home - made thermosetting phenol - formaldehyd...
The disease was brought by Westerners after the Cheng - te period of the Ming dynasty.明朝正德以后,这病由洋人带来.Utahans are also Westerners, people with a wide respect for individual liberty.犹他州人也是西部人, 对个人自由有广泛尊重.Why most westerner...