| 单词 | safety cage |
| 释义 | > as lemmassafety cage safety cage n. †(a) the wire guard of a safety lamp (obsolete); (b) a miner's cage fitted with apparatus to stop it from falling down the shaft if the cable should break. ΘΚΠ society > occupation and work > equipment > mining equipment > [noun] > cage safety cage1839 cage1851 pit cage1869 society > occupation and work > equipment > mining equipment > [noun] > lamp > part of safety cage1839 1839 A. Ure Dict. Arts 1079 This lamp gives so little light as to tempt rash men to remove its safety-cage. 1867 W. W. Smyth Treat. Coal & Coal-mining 172 A number of inventions, to which the name of safety-cage, in French parachute, has been applied. 1920 A. H. Fay Gloss. Mining & Mineral Industry 585/2 Safety cage, A cage, box, or platform used for lowering and hoisting miners, tools, etc., into and out of mines, and which is provided with..an automatic device for preventing the fall of the cage if the supporting cable breaks. 2006 Weekend Austral. (Nexis) 16 Dec. (Mag.) 1 Two knockabout miners..were trapped 925m underground in a 2mx4m safety cage after an earthquake. < as lemmas |
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