During the construction of tunnels in karst mountain, water inrush and gushing mud (sand) disaster has ranked the first in all the disasters.
在岩溶地区隧道施工过程中，涌水、涌泥(砂)已经成为隧道施工的第一大害。
The mud, sand and metabolized products of plankton in bittern of salt lake bring serious difficulty for deep processing of salt chemical product.
盐湖卤水是无机盐工业的基础，但其中含有的泥沙、浮游生物代谢产物给盐化工产品的深加工造成严重的困难。
The method of building salt pan is that mud, sand and salt are pounded into pieces and mixed and pressed well. In which the content of salt may reach 40%.
盐田修建方法为粘土、沙、盐三种物料尽量弄碎并混合均匀、压实，含盐量最高可达40%。
The method of building salt pan is that mud, sand and salt are pounded into pieces and mixed and pressed well. In which the content of salt may reach 40%.
盐田修建方法为粘土、沙、盐三种物料尽量弄碎并混合均匀、压实，含盐量最高可达40%。
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