In practical use, it allows for distinct, transaction-based, connections to occur from a pool of connections that SQLAlchemy has waiting.
在实际应用中，它允许不同的基于事务的连接发生在SQLAlchemy一直在等待的连接池中。
The model can be used to predict metal molten pool can guide the practical production.
运用此模型可预报金属熔池状况，指导实际生产。
The fusion center is designed to have separate modules, feature extraction interface, data association unit and data pool, and fusion calculation unit, which is very structural and practical.
融合中心的结构采用模块化设计，把特征提取、数据关联和融合计算分层次进行，具有结构清晰实用性强的特点。
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