双变量正态总体 Bivariate normal population
双变量正态分布 Bivariate normal distribution
双变量的 bivariate ; two-variable
双变质带 paired metamorphic belts ; paired belts
双变频接收机 double conversion receiver
双变量分布 [数] bivariate distribution
双变频超外差接收机 [电讯] double superheterodyne receiver
双变量 [数] Bivariate ; [数] double variant ; Bivariate data
双变量总体 bivariate population
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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