“back shot”的概念、定义、翻译、参考文献-科学参考

单词	back shot
释义	back shot [`bak ´shät] ^{MINING ENGINEERING} A shot used for widening an entry, placed at some distance from the head of an entry.
随便看	humic-cannel coal Giesler coal test gifblaar poison giga- gigabit gigacycle gigaelectronvolt gigaflops gigahertz gigantism Giganturoidei gigawatt gigging gig mill GIGO gigohm Gila monster gilbert Gilbert circuit Gilbrethian variables Gilbreth's micromotion study gilding gilding metal gill gill cover

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