sprag
音標(biāo)[spr?g]
sprag是什么意思、sprag怎么讀
sprag漢語翻譯
n. 制輪木
【機】 插模釘
【機】 插模釘
sprag英語解釋
名詞 sprag:
- a chock or bar wedged under a wheel or between the spokes to prevent a vehicle from rolling down an incline
- a wooden prop used to support the roof of a mine同義詞：pitprop
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