“leading heading”的概念、定义、翻译、参考文献-科学参考

单词	leading heading
释义	leading heading [`lēd·iŋ `hed·iŋ] ^{MINING ENGINEERING} 1. The heading of a pair of parallel headings that is a short distance in front of the other; used to drain a mining area. 2. A heading dug into the solid coal before the advance of the general face.
随便看	hyostylic hypabyssal rock hypacusia hypalgesia hypandrium hypanthium hypantrum hypautomorphic hypaxial musculature hypengyophobia hyperacid hyperacoustic zone hyperactivity hyperacusia hyperadrenalism hyperadrenocorticism hyperaldosteronism hyperalgesia hyperbaric hyperbaric chamber hyperbaric medicine hyperbaric oxygenation hyperbilirubinemia hyperbola hyperbolic amplitude

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