id	keyword
ajst-17695	soil
ajst-17695	pollution
ajst-17695	control
ajst-17695	soil pollution
ajst-17695	technology
ajst-17695	prevention
ajst-17695	pollutants
ajst-17695	china
ajst-17695	development
ajst-17695	use
ajst-17695	remediation
ajst-17695	chemical
ajst-17695	waste