One result, in the 1940s was be-bop or, simply, bop, a musically sophisticatedproduct of young black musicians.
40年代，比鲍普或鲍普问世，这是一种由年轻黑人乐师推出的较为高深的爵士乐。
2
Chain reaction can triggered by any quality problem during the research process of a sophisticatedproduct, and the chain reaction could cause a significant quality issue, even a quality disaster.
Radio frequency identification (RFID) and more sophisticated technologies for product tracking within supply chain management systems are being experimented in some countries.