id	keyword
fbem-30430	safety
fbem-30430	chemical
fbem-30430	management
fbem-30430	evaluation
fbem-30430	industry
fbem-30430	enterprises
fbem-30430	risk
fbem-30430	china
fbem-30430	research
fbem-30430	production
fbem-30430	method
fbem-30430	safety management
fbem-30430	process