1. DOWAY develops various kinds of products for the coating industry such as ordinary industry grade, high weathering resistance grade, powder coatings special grade and anti-static grade etc. DOWAY杜威公司有各类应用于涂料行业的产品，如普通工业级、高耐候级、粉末涂料专用级、抗静电级等。
2. lean ore more high-grade ore less ore grade to 45 percent less than high-grade ore reserves of ; 贫矿多、富矿少，原矿品位达到百分之四十五以上的富矿储量更少；
3. We need Nolyester and Nylon poy multifilament yarn(only substandard -bc grade-off grade-No a grade) for our ropes production. 只需要低等级别的或无级别的尼龙长丝线。
4. In the utility theory of labor supply of the neoclassic economic regime, for utility maximization workers have full freedom to choose their working hours. 新古典经济学的效用劳动供给理论隐含假设：工人为实现效用最大化可自由选择工作时间，不受劳动市场制度的影响。
5. The high temperature erosion of utility boiler tubes (water wall, superheater, reheater and economizer tubes)by fly ash is recognized as being one main cause of utility boiler tube failures. 水冷壁、过热器、再热器及省煤器管道的飞灰高温冲蚀磨损是电站锅炉管道失效的主要原因之一。
