| 单词 | rainbow |
| 释义 | rainbow [`rān´bō] ELECTRONICS Technique which applies pulse-to-pulse frequency changing to identifying and discriminating against decoys and chaff. OPTICS Colored arc seen in the sky when the sun or moon is illuminating large numbers of falling raindrops. PETROLEUM ENGINEERING Chromatic iridescence observed in drilling fluid that has been circulated in a well, indicating contamination or contact with fresh hydrocarbons. |
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