The third command creates a 1024-bit Digital Signature Algorithm (DSA) key (-b 1024 -t dsa), turns off output (-q), and specifies the name of the key and that there is no password.

第三个命令创建了一个 1024 位的 Digital Signature Algorithm (DSA) 密钥（-b 1024 -t dsa），关闭输出（-q），指定密钥的名称，在这里不指定密码。

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In modern medicine, DSA is a powerful technique in visualizations of blood vessels of X-ray images. In DSA, the most important way for motion correction is image registration.

在现代医学中，DSA是X光片血管可视化技术的重要组成部分之一，在DS A中图像配准对消除运动伪影起着关键作用。

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Objective to evaluate the imaging quality and utility of flat panel detector DSA through comparing and analysing the image of coronary arteriography in traditional DSA and flat panel DSA.

目的通过对平板探测器DSA系统与传统DSA系统冠状动脉造影图像质量进行比较和分析，评价平板dsa系统成像质量和临床应用。

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The DSA is also looking at using locations such as retail premises and public buildings for tests.

BBC: Driving tests offered from Nottingham Trent University

Driving tests are being offered from a university for the first time in a trial launched by the Driving Standards Agency (DSA).

BBC: Driving tests offered from Nottingham Trent University

Tests will still be conducted by DSA examiners, and students and the general public will be able to take their tests at the university.

BBC: Driving tests offered from Nottingham Trent University