You can use the Oracle Net Configuration Assistant utility that comes with the Oracle client software to create and configure the tnsnames.ora file.

您可以使用与Oracle客户机软件一起配送的Oracle Net Configuration Assistant实用程序来创建并配置tnsnames . or a文件。

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So it can guide engineering implementing directly, and has important utility value, also offers the reference for the feature project and net optimizing.

使设计能够直接指导工程的实施，具有很强的实用价值，也为今后工程扩容优化提供了参考依据。

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To counteract the weakness of net present value, a new index, the utility sum of accumulated net-cash-flow present value, is put forward in this paper.

本文针对净现值等指标的局限性，提出了累计现值效用和值指标。

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However, in districts where there are net metering rules in place, schools could sell excess energy back to the utility and get close to offsetting all of their energy bills.

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