ureasen.[生化]脲酶；尿素酶urean.尿素urea-formaldehyde moulding compound脲醛压塑混合物urea formaldehyde compound fertilizer脲醛控释复合肥ureaformaldehyde condensation product脲甲醛缩合物urea-acetamide-inorganic salt melt尿素-乙酰胺-无机盐Ureaplasma urealyticum/drug effects解脲支原体/药物作用Ureamore nutrition licking syrup brick尿素-糖浆多营养舔砖Urea hydrogen peroxide otic preparation过氧化氢脲耳用制剂urea-formaldehyde condensation product脲甲醛缩合物urea modified polyaminamide epihalohydrin聚酰胺聚脲urea-formaldehyde slow release fertilizer脲甲醛缓释肥料