no of cavities
无蛀牙
以上为机器翻译结果，长、整句建议使用 人工翻译 。
According to the unstable status of solution mining in the last period, the remedy well, No. 146, has been drilled in the large area of connecting cavities for miming.
针对岩盐水溶开采后期生产不稳定的状况，在大面积连通采区溶腔内钻成了一眼补救井—146井。
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