极面

double-pole-double-throw switch

双极双投开关

"复投影面投影","double plane projection" | "双极双投开关","double pole double throw switch" | "双直纹面","double ruled surface"

trigonal tetartohedral hemimorphism

三方四分面异极像

三方四分面像晶族 trigonal tetartohedral class | 三方四分面异极像 trigonal tetartohedral hemimorphism | 三方柱 trigonal prism

P-N junction diode

正一负接面二极体

"正一负接面","p-n junction" | "正一负接面二极体","p-n junction diode" | "气压制动;气压韧;气力煞车","pneumatic brake"

polar normal

极法线,极法矩

polar line 极线 | polar normal 极法线,极法矩 | polar plane 极(平)面

polar plane

极(平)面

polar normal 极法线,极法矩 | polar plane 极(平)面 | polar point 极点

polar triangle

配极三角形;极三角形

配极变换 polar transformation | 配极三角形;极三角形 polar triangle | 极三面形 polar trihedral

polar trihedral

极三面形

polar triangle 极三角形 | polar trihedral 极三面形 | polar vector 极向量

areographic pole

火星面极

areographic longitude 火[星]经度 | areographic pole 火星面极 | areography 火[星表]面学

heliographic pole

日面极

日面经度 heliographic longitude | 日面极 heliographic pole | 日面纬度 heliolatitude

hemimorphic form

异极象

hemihedry 半面形 | hemimorphic form 异极象 | hemimorphic hemihedry 异极半面象

photoperiodic response：光周期响应

photoperiodic induction 光周期诱导 | photoperiodic response 光周期响应 | photoperiodism 光期性

Multi-Variate Statistical Analysis：多元统计剖析

311. 多项距阵 Multi-Nominal Matrix | 312. 多元统计剖析 Multi-Variate Statistical Analysis | 313. 发电厂 Power Plant