(a) an area of a railway taken up by points, and in which trains are made up; also transferred; (b) an enclosed area of a power system which contains…
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释义 | the world > matter > physics > electromagnetic radiation > electricity > electrical power, electricity > distribution system > [noun] > switching devices > area containing (1) switchyard1888 (a) an area of a railway taken up by points, and in which trains are made up; also transferred; (b) an enclosed area of a power system which contains… |
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