Self signed certificates, if you have a small number of certificates, you can simply issue self signed certificates.

如果证书数量很少，那么只需颁发自签名证书。

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Sweden said the number of those seeking residency who are self-employed — the most likely category the wealthy fit into — has fallen sharply since 2005 to less than 500 last year.

瑞典说，寻求居住权的自雇人员(富人最有可能归属的类别)数量自2005年以来严重下滑，去年降到不足500人。

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After a number of early experiments, the first self-service system known as AdWords launched in 2000 starting with 350 advertisers.

在做过许多早期实验之后，2000年我们推出了第一个自我服务的广告系统并称之为adwords，一开始有350个广告客户。

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The military has set up and equipped a number of volunteer self-defense networks in the south.

VOA: standard.2009.08.31

His problem is reaching out to swing voters at a time when the number of self-identified Republicans is up to ten points lower than the number of self-identified Democrats.

ECONOMIST: Lexington

As we move forward, it is not only crucial to increase the number of women and girls who know their status, but also, through interventions that increase self-esteem, the number of women and girls who know their self-worth and have tools to make healthy decisions.

WHITEHOUSE: March 10 -- Redoubling Our Efforts on National Women and Girls HIV/AIDS Awareness Day | The White House

But the number of employees working full-time has fallen 120, 000 and the number of self-employed people working full time has risen by 132, 000.

BBC: The mystery of rising employment