| 单词 | instrument meteorological conditions |
| 释义 | > as lemmasinstrument meteorological conditions instrument conditions n. (more fully instrument meteorological conditions; abbreviated IMC) weather conditions, such as poor visibility, in which a pilot must depend primarily on the aircraft's navigational instruments in order to fly. ΚΠ 1936 Safety in Air: Hearings before Subcomm. of Comm. on Commerce: Pt. I (U.S. Senate, 74th Congr., 2nd Sess.) 693 The new A and I range..is totally independable under instrument conditions. 1957 Encycl. Brit. I. 230/1 In the United States the Civil Aeronautics administration developed a system for landing approaches under instrument conditions. 2001 Flying May 63/1 The Bay area is an ideal location for experiencing actual instrument meteorological conditions (IMC). < as lemmas |
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