intensive operation短语⁷⁷⁴⁵⁵ 基本例句 集约经营 The reason for creating a data source or database pool is that it increases application performance, because opening even a single connection is a CPU- intensive operation. 创建数据源或数据库池的原因是它能够提高应用程序性能，因为即使打开一个连接也会十分占用 CPU。 ibm