英语词汇“radial step”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	radial step
释义	DictionarySeewinder radial step winder, wheel step A step, more or less wedge-shaped, with its tread wider at one end than the other, as in a spiral stair.
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radial step