polyurea的用法和樣例：
例句
- The characteristics of special polyurea grease for motor bearing and its application effects are analysed and discussed.
對電機軸承專(zhuān)用聚脲基脂的特點(diǎn)及其在電機軸承上的應用效果進(jìn)行了分析和探討。 - Development history and popularization situation of technology of spraying polyurea elastomer are focused.
重點(diǎn)介紹了噴涂聚脲彈性體技術(shù)的發(fā)展進(jìn)程和推廣普及情況。
