Has the selected mechanism met the performance of the system in terms of expected number of calls, desired response times?
根据预期的调用数量、理想的响应时间，已选择的机制满足系统性能要求吗？
This enables the system to send requests about a number of packages all at once and check the response at a later time one by one.
这使得系统可以一次发送关于多个包的请求，并且在以后逐个检查响应。
This can reduce response times on the middle-tier server, and also improve the scalability of the system by reducing the number of connections and calls to the Library server.
这可以在中间层服务器上减少响应时间，而且由于减少了对Library Server的连接和调用数量，这也提高了系统的可伸缩性。
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