“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	Bangkok Dynasty Bangkok National Museum Bangkok Port Bangkok Post Bang Kyeong Gak Oe Jeon Bangladesh Bangladesh Awami League Bangladesh, cinema in Bangladesh Drama Bangladesh Jatiya Party Bangladesh Nationalist Party Bangladesh National Museum Bangladesh Observer Bangladesh Submarine Fan Bangma Shan Bangnazhang Wenquanqun Bangong Co Bangong-Nujiang suture zone Bangsawan Bangtuo Temple Bangudae Petroglyphs Bangui Bangui Event Bangwei wild tea plant Bangweulu Lake

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