“Korfmann arch saver”的概念、定义、翻译、参考文献-科学参考

单词	Korfmann arch saver
释义	Korfmann arch saver [`kȯrf·män `ärch ´sāv·ǝr] ^{MINING ENGINEERING} A machine that uses a controlled hydraulic system to withdraw steel arches.
随便看	valley floor valley glacier valley iceberg valley line valley plain valley rafter valley roof valley train valley wind Valoniaceae valuation value value-added network value analysis sferics sferics fix sferics observation sferics receiver SFS S glass shackle shackle bolt shade shaded-pole motor shaded-relief map

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