obscuration

基本解释

In 1994, long poem Obscuration, my whole life's theme(selection) was selected in the Autumn & Winter volume of Modern Chinese.
1994年——长诗《昏暗我一生的主题》（节选）被编入《现代汉诗》1994年秋、冬合卷。
These were previously undetected at visible wavelengths due to obscuration by the thick cloud ('globule body') and by dust surrounding the newly forming stars.
但受其周围厚厚的云团（象鼻星云本身）和原恒星周围尘埃的影响，这些原恒星以前无法被可见光波长的探测器所发现。
The thesis tries to reveal the clarity and obscuration of lights & shadows in painting works. It ponders the theory of dislocation, and tries to find the metaphysical meanings of lights & shadows.
本文意欲揭示绘画作品中光影的澄明与遮蔽，切入断层论的思考，迈入光影形而上意义的返回步伐。

While always important, the need to communicate the value of Business Aviation is particularly critical now as the budget drama in Washington unfolds in an atmosphere of crisis and political obscuration.
FORBES: Budget Cuts Could Have Dire Consequences For Business Aviation
As public awareness of and concern about shariah intensifies, the Muslim Brotherhood and its friends are employing taqqiya frantically in the hope of maintaining the obscuration so critical to their stealth jihad.
CENTERFORSECURITYPOLICY: The 'end of the beginning' on Shariah?

the act of preventing something from being seen or heard, or something that prevents something else from being seen or heard

遮蔽
The thesis tries to reveal the clarity and obscuration of lights & shadows in painting works. It ponders the theory of dislocation, and tries to find the metaphysical meanings of lights & shadows.
本文意欲揭示绘画作品中光影的澄明与遮蔽,切入断层论的思考,迈入光影形而上意义的返回步伐。
天文学
掩星；食