In the end, the network reliabilities considering voltage sags and protective relays or not are compared.

最后比较了计及电压暂降和保护性能前后的配电网可靠性指标变化.

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This article describes examples to upgrade introduced power turbine so as to further increase their reliabilities.

叙述了提高引进型大功率汽轮机可靠性的具体成果.

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The reliabilities of casing head and gas - producing wellhead are related with the producing safety.

套管头及采气井口是完井采气井口装置,使用可靠关系到一口井长期采气的安全.

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