“stull piece”的概念、定义、翻译、参考文献-科学参考

单词	stull piece
释义	stull piece [`stǝl ´pēs] ^{MINING ENGINEERING} 1. A piece of timber placed slanting over the back of a level to prevent rock falling into the level from the stopes above. 2. Timbers bracing the platform of a stull.
随便看	end-fire array end instrument endite end item end labeling end lap endless loop endless tangent screw endless tangent screw sextant endlichite end loader end loss end mark end member end mill end-milled keyway end moraine endo- endobasion endobatholithic endobiotic endobranchiate endocardial fibroelastosis endocarditis endocardium

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