矿柱

矿柱 [kuàng zhù]

1. ■ mine prop; pillar; post; stump; rib; jamp

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常用词组

1. ■ 矿柱巷道 {采矿} pillar split;

2. ■ 矿柱回采 pillar recovery;

3. ■ 矿柱强度 pillar strength