The arrangement of objects in a stack or pile; a build-up. spec. in Aeronautics = stack, n. 1e.
单词 | θ207314 |
释义 | society > travel > air or space travel > regulation and control of flying > [noun] > placing aircraft in landing sequence > aircraft waiting in landing sequence (3) stack-up1945 The arrangement of objects in a stack or pile; a build-up. spec. in Aeronautics = stack, n. 1e. stack1947 Aeronautics. A series of aeroplanes circling at different altitudes and awaiting landing instructions. traffic stack1947 a number of aircraft circling at different altitudes around the same point while waiting for landing instructions; = stack, n. 1e. |
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