英语词汇“pressure ring”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	pressure ring
释义	pressure ring pressure ring [′presh·ər ‚riŋ] (mining engineering) A ring about a large excavated area, evidenced by distortion of the openings near the main excavation.
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