“sinking headframe”的概念、定义、翻译、参考文献-科学参考

单词	sinking headframe
释义	sinking headframe Encyclopedia 工学凿井设施释 sinking headframe凿井井架凿井时，用于支承提升天轮、悬吊天轮和架设卸渣设施等的结构物。又称掘进井架。
随便看	direct sum decomposition direct sum group direct summand direct sum module direct sum of groups direct sum of ideals direct sum of modules direct sum of objects direct sum of representations direct sum of rings direct sum of sets direct sum of sheaves direct sum of subspaces direct sum representation direct-sum set direct-sum space direct sunlight direct switching direct system direct system of group Direct teaching method direct theorem direct ties direct titration direct to blister copper process

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