“railroad warning sign”的概念、定义、翻译、参考文献-科学参考

单词	railroad warning sign
释义	railroad warning sign 铁道警告标志
随便看	dead and down dead angle dead arc dead area dead arm dead arm of grape dead assets dead astern dead axle dead band dead-band regulator dead bank dead banking dead bargain dead-beam pass dead-beat dead beat deadbeat dead-beat controller deadbeat discharge deadbeat escapement dead beat escapement dead-beat galvanometer dead beat galvanometer dead-beat instrument

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