obscuration
n. 昏暗；蒙昧；[天]掩星
近义词：pretense，
例句
- Deal with the causes of obscuration, not with the sun. （比如眼翳）需要治理的是障碍的成因，而非太阳。
- The period of time during which such an obscuration occurs. 这种天体变暗发生的时间。
- Center obscur is avoided and wide field of view is realized. 采用共轴系统设计、离轴视场使用的成像方式,避开了中心遮光,实现了大视场。
- Occultation Complete or partial obscuration of an astronomical object by the moon or a planet. 月球和行星运行时,完全或部分掩蔽背景天体的现象,称为掩星。
- Haze; obscuration of the sky by a wide dispersion of smoke or dust particles in the air. 霾:空气中因悬浮着大量的烟、尘等微粒而形成的混浊现象。
- The original meaning of enlightenment is to explore obscuration, to eliminate absurdity, and to discovery truth. 摘要 "启蒙"的本义是开发蒙昧、清除荒谬、发现真理。"