“secondary support”的概念、定义、翻译、参考文献-科学参考

单词	secondary support
释义	secondary support Encyclopedia 工学巷道支护释 secondary support二次支护井巷掘进中采用分次支护时，在一次支护完成后再次施工的支护。又称永久支护、后期支护。理学地下工程支护释 secondary support二次支护在初期支护稳定后完成的提供安全储备或承载后期围岩压力的支护形式。
随便看	fountain model fountain moss fountain pump fountain solution Four Academies established by Emperor Wen of Liu Song four-acceleration four accompanying supports of aircraft materiel four acoustic properties of speech sounds four acts and one prologue four agricultural subsidies Fourah Bay College Four-arched Pagoda four arithmetic operations four articulations four aspects four aspects of assessment and six criteria for removal from office four attacking skills four axioms of quantum mechanics four-axis coordinate system four-axis mounting four-ball test machine Four Banks of South-China Four Bases of Mindfulness Four Biggest Households Bureaucratic Capital four-body problem

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