“beam hanger”的概念、定义、翻译、参考文献-科学参考

单词	beam hanger
释义	beam hanger [`bēm ´haŋ·ǝr] ^{PETROLEUM ENGINEERING} An attachment at the end of a walking beam above a well casing to lift the pump rods or sacked rods.
随便看	Penning ion source Penning trap penninite Pennsylvania-base crude Pennsylvanian Pennsylvania truss pennyroyal oil pennyweight Penokean pen recorder Penrose diagram Penrose-Hawking theorems penroseite Penrose process Penrose theorem Pensky-Martens closed tester penstock pentabasic pentaborane pentachloride pentachloroethane pentachloronitrobenzene pentachlorophenol pentacite pentacosane

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