| 单词 | treadle mat |
| 释义 | > as lemmastreadle mat treadle mat n. a mat or casing which activates a mechanism when stepped on or otherwise depressed. ΘΚΠ society > occupation and work > equipment > machine > parts of machines > lever > [noun] > operated by foot treadle14.. treddle1671 footstep1678 footboard1721 treader1747 pedal1789 treadle mat1937 1937 Times 13 Apr. p. xvi/4 Pneumatic treadle mats cover the steps so that the doors when released by the driver may be automatically opened by passengers standing on the steps. 1966 Electronics Weekly 16 Mar. 3/1 The passage of the wheels over a treadle mat causes the light to change to red. < as lemmas |
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