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| زمن تحرير للمرحّلات البسيطة | |||
| 英语 词库 | |||
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| An expression used in radiocommunication to indicate a departure time restriction issued to a pilot by ATC either directly or through an authorized relay when it is necessary to separate a departing aircraft from other traffic | |||
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release time : 5 短语, 2 学科 |
| 电力系统保护 | 4 |
| 铁路术语 | 1 |