“BFRs”簡單造句，BFRs造句子

1、Determination of BFRs in waste water by gas chromatography/negative-ion chemical-ionization mass spectrometry

3、To do well in Greenpeace's rankings, firms must make sure both products and production processes are free of polyvinyl chloride (PVC) [3] and some BFRs that are not on the RoHS list.

2、The European Union now prohibits the use of mercury, cadmium, certain BFRs and other elements from electronics manufacturing.