“long-hole jetting”的概念、定义、翻译、参考文献-科学参考

单词	long-hole jetting
释义	long-hole jetting [`lȯŋ ´hōl ´jed·iŋ] ^{MINING ENGINEERING} A hydraulic mining system consisting essentially of drilling a hole down the pitch of the vein, replacing the drilling head with a jet cutting head, and then retracting the drill column with the jets in operation to remove the coal.
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