英语词汇“spot board”的英英意思、用法、释义、翻译、读音、例句、短语、词组-英语词典

单词	spot board
释义	spot board noun : a sighting board laid across the rails in advance of a railroad track-raising gang to indicate the required amount of lift
随便看	stainlessness stainless steel stair stair staircase staircase staircase curve staircase shell hypoeutectoid hypoferraemia hypoferremia hypofunction hypogaean hypogaeum hypogammaglobulinemia hypogammaglobulinemic hypogamy hypogastric hypogastric hypogastric artery hypogastric plexus hypogastric vein hypogastrium hypogeal hypogeally

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