“backup tong”的概念、定义、翻译、参考文献-科学参考

单词	backup tong
释义	backup tong [`bak´ǝp ´täng] ^ENGINEERING A heavy device used on a drill pipe to loosen the tool joints.
随便看	flight-weather briefing FLIH flinching Flinders bar F line flinkite flint flint clay flint glass flint mill FLIP flip chip flip coil flip-flop amplifier flip-flop circuit flip-open cutout fuse flip-over process flipper flippy-floppy FLIR imager flist flitch flitch beam flitch girder flitch plate

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