零: zero zero sign; nought区: H region; H阈: threshold; doorsill threshol ...零区时: zero zone time零区域: null range零区检测: null zone detection零曲度: zero camber零曲率: zero curvature零屈光度: zero diopter; zero power零屈光度空间: zero-power space零倾线: aclinic line零屈光度空气隙双: zero-power air-spaced doublet零倾角轨道: zero-inclination orbit
