| 单词 | line clear |
| 释义 | > as lemmasline clear In railway language variously applied (a) to a single track of rails, as in the up line, the down line; (b) to a railway forming one of the parts of a system, as in main line, branch line, loop line; (c) sometimes to an entire system of railways under one management, as in the Midland line. line clear, a signal indicating that a line is unoccupied and that a train may therefore proceed; line of rail (see quot. 1965; cf. end of steel n. at end n. 6f).extracted from linen.2< as lemmas |
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