ureasen.[生化]脲酶；尿素酶urean.尿素urea plastic moulding compound[化] 压制脲醛塑料Urea peroxide otic preparation过氧化氢脲耳用制剂urea-formaldehyde fertilizer脲甲醛肥料urea-removal electrodialyzer滤尿电渗析器urea-molasses nutrient block尿素-糖蜜营养舔砖urea melt spraying granulation尿素熔融喷浆造粒urea - formaldehyde adhesive脲醛树脂胶Urea-Formalde/Furan Resin脲醛呋喃树脂urea-linseed meal based diets尿素-麻饼型日粮Urea fomaldehyde resin adhesive脲醛树脂