英语词汇“pencil cave”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	pencil cave
释义	pencil cave pencil cave [′pen·səl ‚kāv] (engineering) A driller's term for hard, closely jointed shale that caves into a well in pencil-shaped fragments.
随便看	rhigas pheraios rhigf rhigolene rhigonematidae rhigosis rhigotic rhihl rhii rh ii/gu rh-ii/gu rh-ii/gua rh-ii/gub rhiip rhijnvis feith rhilw rhim rhime rh immune globulin rh-immune globulin rhims rhin rhin- rhinal rhinalar rhinalar nasal mist

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