The paper sums up the representative structures, consisting of series-connection structure, parallel-connection structure, cold spare structure, hot spare structure, and ring spare structure, etc.

本文对卫星系统的典型结构进行了总结，主要包括串并联结构、冷热备份结构、环备份结构等。

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After hours in the cold and wet, he reached inside and pulled the wallet out hoping to find some ID so he could contact the driver, only to discover it contained £400 in notes, with another £50 in spare change beside it.

他在又冷又湿的天气里呆了几个小时，于是伸手取出钱包，想能找到身份证，以便与司机取得联系，结果却发现钱包里装着400英镑钞票，旁边还有50英镑的零钱。

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Just as the end of the Cold War was meant to produce a "peace dividend", we should now be experiencing a "technology dividend", luxuriating in the spare time we have created for ourselves.

正如冷战的结束注定了“和平红利”的诞生，我们如今正在享受“科技红利”，它让我们把所争取来的业余时间都耗了进去。

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Flemish enthusiasts at Steam Center Maldegem, a heritage center in northern Belgium, recently spent a cold day cutting spare boiler screws for their stable, which includes a Polish-built steam engine, the "General Maczek, " named for the Polish general who helped liberate Belgium in World War II.

WSJ: Belgian Train Museum Had a Hard Time Getting on Track

It also sells cold drinks in a hot continent whose billion citizens are just starting to have a bit of spare cash.

ECONOMIST: Beer in Africa: From lumps to lager | The