| 单词 | pneumatic tube |
| 释义 | > as lemmaspneumatic tube pneumatic tube n. now chiefly historical a tube used for conveying letters, parcels, etc., in pneumatic dispatch. ΚΠ 1863 Times 10 Feb. 4 The company was registered..with limited liability, for the establishment in the metropolis of lines of pneumatic tube. 1898 E. Howard To-morrow 48 Subways for sewerage and surface drainage,..pneumatic tubes for postal purposes, have come to be regarded as economic if not essential. 1992 N.Y. Times 12 July v. 16/5 Even the turn-of-the-century system of delivering express letters through pneumatic tubes survives. It now connects only Government ministries and Parliament. < as lemmas |
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