| 单词 | midcourse |
| 释义 | midcourse /mid"kawrs', -kohrs'/, n. 1. the middle of a course. 2. Rocketry. the portion of a ballistic trajectory between the end of powered flight and the beginning of the reentry phase. 3. Aerospace. the portion of a space trajectory between leaving the earth's vicinity and arrival at the desired destination, as another planet. [1555-65; MID- + COURSE] |
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