Static timing analysis is widely applied in timing verification because of its high speed and great capacity. The gate delay computing is a critical part of static timing analysis.

静态时序分析由于速度快和容量大而广泛应用于时序验证，而门延时的计算则是静态时序分析中的关键部分。

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Immunization coverage and timing varied widely by country, as did the proportion of children immunized and with what vaccines. The mean age at first immunization was 1.1 months.

在各个国家中，免疫反应范围和时效变化很大。无论是用何种疫苗，获得免疫性的儿童所占比率变化同样很大。获得出示免疫力的儿童的平均年龄是1.1月。

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The most widely accepted defense against timing attacks is to perform RSA blinding, which has a performance penalty.

为了防御计时攻击，一般采用以“绑定法”为代表，影响运算性能的模幂算法。

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