英语词汇“bottom-hole packer”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	bottom-hole packer
释义	bottom-hole packer bottom-hole packer [′bäd·əm ‚hōl ‚pak·ər] (petroleum engineering) An anchored-in-place seal used to provide liquid-proof packing in the annular space between the outside of the oil-producing tubing and the inside of the drill casing.
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