1) primary loop
一次回线
2) multivariante first-order equation of linear regression
多元一次线性回归方程
4) primary circuit
一次回路
1.
Development of intelligent CAD system software for primary circuit in transformer substations;
智能化变电所一次回路CAD系统软件开发
2.
It was pointed out that it was the larger contact résistance in primary circuit of a 200 MW turbine generator, which produced a larger unbalance voltage at open triangle of the potential transformer secondary side, that caused the protection malfunction among turn-to-turn, and some suggestions of solving these problems available were presented for .
分析了匝间保护误动的原因,指出某台200MW汽轮发电机一次回路接触电阻大,导致电压互感器(TV)二次侧开口三角出现较大的不平衡电压造成匝间保护误动。
5) primary backfill
一次回填
6) rev
[英][rev] [美][rɛv]
一次回转
补充资料:一元一次方程
定义:只含有一个未知数,且未知数的最高次数是1的整式方程叫做一元一次方程。
一般形式:ax+b=0(a、b为常数,a≠0),此时有唯一解。
不过对于一些方程,可以化为特殊的一元一次方程,如0x=b或0x=0,前者无解,后者有无穷多解。
说明:补充资料仅用于学习参考,请勿用于其它任何用途。
参考词条