primary support of composite lining
primary support of composite lining
复合衬里的主支撑
以上为机器翻译结果，长、整句建议使用 人工翻译 。
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The calculation of structural load on the lining of tunnel with shallow overburden shows that the load on composite lining will be shared by primary support and secondary lining.
隧道衬砌在浅埋段的结构荷载计算表明，复合式衬砌中的初期支护和二次衬砌一般要共同承担荷载。
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