1) locked-in loop structure
封闭式毛圈结构
3) Closed membrane structure
封闭式膜结构
4) closed architecture
封闭(式体系)结构
5) closed box type construction
封闭式箱形结构
补充资料:封闭圈
封闭圈
contour line passing the lowest point of top edge in final pit limit
fengb{qUon封闭圈(eontourline passing the lowest pointof topedge in final pitlimit)露天采矿场地表最终境界的平面闭合曲线。封闭圈以上为山坡露天矿.以下为凹陷露天矿。金属矿山多为山坡凹陷露天矿。在开采中先采山坡露天矿,然后逐渐过渡开采凹陷露天矿口 (李宝祥)
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参考词条