詞語：ureas
ureas的解釋
ureas['juəriəs]n. 尿素酶；尿素塑料
ureas的意思
ureas 尿素塑料;尿素酶;釋義：尿素塑料(類);amidino ureas 脒基碳酰胺;Ureas resin 尿素樹脂;
ureas的參考例句
1.Lignin as a material recovered from pulping black liquor was used to modify general ureas character. The solubility in water and activity of lignin urea are decreased. 以造紙黑液中回收的木素為主要原料對尿素改性，合成的木素長效尿素，具有緩釋、長效的作用。
2.This thesis mainly introduced that ureas and semicarbazides were synthesized by oxidation of corresponding thioureas and thiosemicarbazides using 30% peroxide as oxidant. 本文主要介紹了以30%濃度的雙氧水作為氧化劑氧化硫尿、氨基硫尿來制備相應的尿和氨基尿類化合物。
3.The addition of urea in divided portions in steps can lower the free formaldehyde content obviously, and mono-and di-substituted ureas exist in the resin after the end of reaction. 分次加尿工藝能明顯降低樹脂中的游離甲醛含量，游離尿素並不存在，尿素主要以一取代脈和二取代脈的形式存在。