成级 meaning in English

bunching
staged

However , the current scale of china ' s capital market is relatively small . so some institutional investors , such as fund , insurance companies , investment banks and even foreign investors should be encouraged to enter this npl market . in addition , the four amcs monopoly in the primary npl market
但是，这四个资产管理公司处置不良资产的成级并不很理想，在2000 ? 2001两年，四家资产管理公司已处置不良资产资产1450亿元，平均每年处置725亿元。