Experimental study on the desulphurization by powdered activated coke in a dual layer granular bed filter 粉状活性焦在双层(DL)滤料颗粒床中的脱硫试验研究
Preparation and Water / Oil Repellent Behavior of PFOA-APTES Self-Assembled Dual Layer(DL) Films PFOA-APTES自组装双层(DL)膜的制备及其拒水拒油性能
Make perfect dual layer DVD copy by using the original layer break position. 使用原始断层位置建立完美的双层(DL)DVD备份。
A mathematical model on cuttings transportation of dual layer stabilizing in the highly inclined well is established based on the Law of Mass Conservation and Momentum Theorem, taking the fines spreading in the suspension layer and fluid pressure drop in the cutting bed into consideration. 根据质量守恒定律和动量定理,建立了考虑悬浮层颗粒扩散、岩屑床中流体压力降的大斜度井中两层稳定岩屑传输数学模型。
Calculation equation and method for borehole wall pressure and bedding flow rate under conditions of areal homogeneous reservoir without interlayer channeling and equal or unequal initial pressure between each layer are given by using Duhamel theory and additive method in accordance with circular sealed dual layer reservoir. 针对圆形封闭双层(DL)油藏,应用Duhamel原理及叠加方法,给出了平面均质油藏层间无窜流、各层初始压力相等或不相等情形下油井井壁压力、各层层面流量的计算公式和方法。