非平面对称磁场
Magnetic field without symmetric plane
平面对称光学系统
plane-symmetric optical system
一对平面反射镜
a pair of flat reflecting mirrors
35mm焦平面手动对焦相机
35mm NON-AF Focal Plane Cameras
35mm焦平面自动对焦相机
35mm AF Focal Plane Cameras
等平面自对准工艺
equi-planar and self-aligned technology
对数平均面积
logarithmic mean area
logarithmic mean area log mean area
log mean area logarithmic mean area
log mean area
非对称平面扩压器
asymmetric plane diffuser
海平面相对变化
relative change of sea level