n.[生化]脲酶；尿素酶
A clathrate compound, such as urea. 包合物一种笼状化合物，如尿素
But 120 tons of urea is really a small one. 但120吨尿素确实是个小数目。
Government tender urea must submit price by 18th noon. 政府招标尿素，须于18日正午前报价。
Allantoin is one of the important urea derivative products. 尿囊素是一种重要的尿素衍生产品。
A kidney also takes urea and mineral salts out of the blood. 肾还排出血液中的尿素和无机盐。
Urea is commonly used as the source of nitrogen in foliage sprays. 尿素作为氮素给源普遍地应用于叶面喷布。
