“primary haulage”的概念、定义、翻译、参考文献-科学参考

单词	primary haulage
释义	primary haulage [`prī´mer·ē `hȯl·ij] ^{MINING ENGINEERING} A short haul in which there is no secondary-or main-line haulage. Also known as face haulage.
随便看	Paxillosida Paxillosina payback period pay dirt paying payload payload-mass ratio payoff matrix pay ore payout time pay sand pay streak pay television pay zone Pb P band PBI Pb-I-Pb junction PBI test p-block elements P blood group P-branch PBX PC PCA

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