Principle and application on remediation technology of heavy metals cadmium-pollution in soil 并列题名：Principle and application on remediation technology of heavy metals cadmium-pollution in soil Research and application of remediation technology in contaminated soil Research and practice on prevention and remediation technology of heavy metal pollution in agricultural soil 并列题名：Research and application of remediation technology in contaminated soil 并列题名：Research and practice on prevention and remediation technology of heavy metal pollution in agricultural soil Theory and practice of remediation of heavy metal contaminated soil