| 单词 | facing point lock |
| 释义 | > as lemmasfacing point lock facing point lock n. Railways a locking device that ensures the proper closing of facing points. ΚΠ 1874 R. C. Rapier On Fixed Signals Railways 66 When used as an outlying facing-point lock, no locking bars or detector bolts were required. 2007 European Patent Applic. 1860238 A2 2 A facing point lock is necessary to ensure the closed blade does not move away from the left running rail when trains pass over the closed switching device. < as lemmas |
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