由于人工软化水采用钠离子取代镁离子和钙离子，因此具有极强的腐蚀作用。
Artificially softened water is exceedingly corrosive because the process substitutes sodium ions for magnesium and calcium ions.
软岩遇水后力学性质软化规律的研究，是水—岩相互作用研究的重要课题之一，在重大工程的设计与实践中具有重要意义。
Research on softening regularities of mechanical properties of saturated soft rocks and their application is one of the important theoretical and practical problems in geotechnical fields.
世界记录好象是5天这个正常，因为 水有使组织放松、 软化 的作用。
World record is like is 5 days this is normal, because water has, make the organization is loosened, the action of bate.
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