“drop log”的概念、定义、翻译、参考文献-科学参考

单词	drop log
释义	drop log [`dräp ´läg] ^{MINING ENGINEERING} A timber which can be dropped across a mine track by remote control to derail cars.
随便看	TBE T beam TBH T bolt TBP tbsp TBT Tc TCA T cell T-cell receptor Tchebycheff Tchernozem Tchuprow-Neymann allocation T circulator T connector TCP TCR TD TDE t distribution TDR TDZ Te TEA

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