“casing shoe”的概念、定义、翻译、参考文献-科学参考

单词	casing shoe
释义	casing shoe [`kā´siŋ ´shü] ^ENGINEERING A ring with a cutting edge on the bottom of a well casing.
随便看	head erosion header record header-type boiler head fold headframe head gap head gate headgear head height headhouse heading heading-and-bench mining heading angle heading blasting heading joint heading line heading-overhand bench method heading side heading-upward plan position indicator heading wall headland head length headlight headline head loss

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