| 单词 | twilight zone |
| 释义 | twilight zone [`twī´līt ´zōn] ASTRONOMY That zone of the earth or other planet in twilight at any time. ELECTROMAGNETISM Anything resembling the twilight zone of the earth, as the narrow sector on each side of the equisignal zone of a four- course radio range station, in which one signal is barely heard above the monotone on-course signal. |
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