根据精馏段和提馏段热耦合的相对位置不同，外部热耦合复合精馏塔系统可分为对称型和非对称型两种结构。
According to the relative positions of thermal coupled rectifying and stripping sections, the configurations of the system involved two types, symmetrical EHIDDiC and asymmetrical EHIDDiC.
本文介绍一种用于受力构件的减振降阻尼材料——不对称型复合阻尼钢板。
This paper introduces a sort of damping material reducing vibration noise used for components suffered forces i. e. composite damping steel plate with asymmetrical structure.
此文用塑性泥作模拟材料，进行了压扭复合锻造和不对称V型砧拔长的工艺实验。
The experiments of twist-compression forging and unsymmetrical V-shape die forging are made using plasticine.
此文用塑性泥作模拟材料，进行了压扭复合锻造和不对称V型砧拔长的工艺实验。
The experiments of twist-compression forging and unsymmetrical V-shape die forging are made using plasticine.
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