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Our company has a number of soil remediation technology patents. According to the type of contaminated site, soil characteristics and remediation mode, we can analyze and compare the advantages and disadvantages of existing remediation technologies in terms of technology maturity, remediation effect, time and cost, and focus on analyzing each remediation technology. For the practicality of engineering application, the repair technology should be evaluated by means of laboratory test, field test or application case analysis, and choose economical, reasonable and feasible repair technology.