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1929年5月1日

1分鐘閱讀

工程師是否警覺？

列車控制裝置會在任何情況下，如果工程師未能響應訊號，則自動停止列車

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This article was originally published with the title “Is the Engineer Alert?” in 大眾科學 Magazine Vol. 140 No. 5 (May 1929), p. 434
doi:10.1038/scientificamerican0529-434

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