racial profiling VOA里的.

racial profiling VOA里的. profiling在这里是什么意思?Crowley,who is white,had once been chosen by a black police officer to teach a police academy course on ways to avoid racial profiling.经常看到这个词,但是感觉还是不太明白. depth-profiling profiling是什么意思 miRNA profiling什么意思 transcriptome profiling是什么意思? genetic profiling是什么意思 profiling process是什么意思 offender profiling是什么意思 polysome profiling是什么意思 cancer profiling怎么 翻译? metabolic profiling是什么意思 what is racial discrimination China racial discrimination it? racial 和 ethnicity 请问这里的profiling是什么意思Microarray profiling RNA sizing and DNA genotyping were performed prior to profiling studies. 请问这里的profiling是什么意思?Microarray profiling RNA sizing and DNA genotyping were performed prior to profiling studies. why does racial discrimination exist?