pitprop
音標(biāo)['pitpr?p]
pitprop是什么意思、pitprop怎么讀
pitprop漢語翻譯
n. 坑木, 坑道支柱
pitprop英語解釋
名詞 pitprop:
- a wooden prop used to support the roof of a mine同義詞：sprag
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糾錯(cuò)
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