On the bases of experiment of using citric acid to absorb low concentration sulfur dioxide, based on Duplex Film Theory, the local and overall mass transfer coefficient s of the absorption of sulfur dioxide using hollow fiber were deduced theoretically.
本文综述了国内外采用中空纤维技术吸收二氧化硫烟气的现状，在对柠檬酸吸收低浓度二氧化硫实验的基础之上，采用双膜理论对中空纤维吸收二氧化硫过程中的各分传质系数和总传质系数进行了理论推导，初步探讨了膜吸收过程中数学模型的建立方法；结合实验结果，通过对一些环境变量的常规合理假设，利用计算机软件对膜吸收过程中的传质系数进行了计算，并对系统进行了可视化设计，较直观的表现出膜吸收过程中相关变量与总传质系数之间的关系。
On the basis of the First Thermodynamics Law, using heat transfer theory, the impact of fouling thickness on condenser vacuum, unit power and unit heat consumption rate is calculated by quantitative analysis method when duplex pressure condenser cooling water tube is fouled.
以热力学第一定律为基础，应用传热学原理，针对双背压凝汽器冷却水管结垢时不同垢层厚度，对凝汽器真空、机组功率以及机组热耗率的影响进行了定量分析计算。
In theory, the bandwidth is doubled when full duplex is used.
理论上，当使用全双工时，频宽是加倍的。
Taking the theories of wire communication, radio communication and antennas as the core theory system, the basic theory system and feasibility of leaky coaxial cable (LCX) used for duplex continuous communication in the blind or semi-blind zone qualitatively and quantitatively are analyzed.
以有线通信理论、无线通信理论及天线理论为核心理论体系，对适用于闭域或半闭域空间实现双工无隙通信用泄漏电缆的基本理论体系和可行性进行了定性和定量的分析与研究。
On the basis of the thermal-elastic-plastic theory, a three dimensional finite element numerical simulation residual stress of girth welded duplex stainless steel pipes with ANSYS non - liner finite element program.
以热弹塑理论为基础，利用ANSYS非线性分析有限元程序，对双相不锈钢管道接头环焊缝残余应力进行三维数值模拟。
The Eccentric Dressing Device of Grinding Wheel with Duplex Circular Arcs PRofile And Analysis of Tooth Profile Errors Theory and Testing Research on Realizing Two-dimension Precision Adjustment with Double Eccentric Mechanism
双圆弧砂轮偏心修整机构及牙形误差的研究实现二维精密调整的双偏心机构理论及试验
Fundamental theory formulas and a mathematic model involving chief characteristic parameters such as radiating direction, radiating loss, transmitting loss of LCX are introduced, and an effective theory and fulfilling scheme for achieving duplex continuous communication in the blind or semi-blind zone are provided.
引入了泄漏电缆辐射方向、辐射损耗、传输损耗等主要特性参数的基础理论公式和数学模型，为闭域或半闭域空间实现双工无隙通信提供了一种行之有效的理论和实现方案。