The focusing accuracy analysis is repeatable and quite consistent, since it does not depend on the judgment of the tester.
由于此操作不依靠测试人员的调整，所以对焦精度分析一般是可重复和十分一致的。
This paper describes the design of a portable draft pressure tester and analyses its architecture and the working principle of its main module, and also discusses its accuracy.
本文介绍一种便携式微差压测试仪的设计，详细分析它的系统结构以及主要模块工作原理，并对它的精度进行讨论。
It introduced a multifunction relay electrical characteristic tester with fast speed, high accuracy, high reliability. It can satisfy the requirements of large automatic production.
介绍了多功能的继电器电性能测试仪，它具有适用广、速度快、准确性高、运行可靠等优点，能满足大规模自动化生产的要求。
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