Dushanzi asphalt was modified by blending resin and rubber polymers.The experiments of polymers blending ratios were arranged by uniform design method. 采用均勻設計法安排試驗，通過(guò)加入不同比例的樹(shù)脂類(lèi)聚合物及橡膠類(lèi)聚合物對獨山子煉油廠(chǎng)的瀝青進(jìn)行了改性。
Aspirin controlled release matrix tablets were prepared using quantitative controlling method of high speed stirring granulation technology. 用均勻設計法設計試驗，對高速攪拌制粒工藝進(jìn)行定量化控制，制備了阿司匹林控釋骨架片。
