弯管内模支撑由半圆弧形支撑架与双变弧垫模组成。
The inner mold support of a knee pipe is composed of the semi-circular arc-shaped support frames and a bivariate arc pad mold.
采用双变总并关键轴承，通用性能好、维修方便，双变系统更加稳定可靠。
3 dual variable total and critical bearings, general good performance, easy maintenance, more stable and reliable bivariate system.
提出了一种可借助于最小敏感性原理求解本征能量的双变分参数的近似方法。
It proposes an approximation method with two variational parameters for finding the eigen-energies by principle of minimal sensitivity.
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