Valid physician practice certificates 持有有效的医师执业证
Accountant's practice qualification certificates 有会计从业资格证书 ; 会计从业资格证
Securities practice qualification certificates 证券从业资格证书
practice certificates
实践证明
以上为机器翻译结果，长、整句建议使用 人工翻译 。
And the practice certificates that this system can meet the needs of multimedia centralized control because of its perfect functions, reliable performances and easy expansion.
实践证明，该系统功能完善、性能可靠、易于扩展，完全能满足多媒体集中控制的需求。
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