a valve on a balloon or airship in the form of a ripping panel.
| 单词 | θ207993 |
| 释义 | society > travel > air or space travel > a means of conveyance through the air > balloons and airships > [noun] > valve (2) ripping valve1900 a valve on a balloon or airship in the form of a ripping panel. crab-pot1918 (a) a trap for crabs, a basket or frame of wickerwork so constructed that crabs can readily enter but cannot get out again; (b) (also crab-pot valve)… |
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