In China, the crisis of vocational technician, "Grey collar", has occurred, and the unbalance of refrigeration technician is critical.
我国已经出现“灰领”人才危机，特别是制冷人才的供求严重失衡。
In China, the crisis of vocational technician, "Grey collar", has occurred, and the unbalance of refrigeration technician is critical.
我国已经出现“灰领”人才危机，特别是制冷人才的供求严重失衡。
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