“home signal”的概念、定义、翻译、参考文献-科学参考

单词	home signal
释义	home signal [`hōm ¦sig·nǝl] ^{CIVIL ENGINEERING} A signal at the beginning of a block of railroad track that indicates whether the block is clear.
随便看	Orthacea Orthent Ortheziinae orthicon Orthid Orthida Orthidina orthite ortho acid ortho-aminophenol orthoarsenic acid orthoaxis orthobaric density orthobituminous coal orthoboric acid orthocenter orthocephaly orthoceratite orthochem ortho-chlorotoluene orthochromatic orthochronology orthoclase orthoconglomerate orthocumulate

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