几个月前我亲自测试了MyFord Touch系统，结果总体上还不错。
I tested MyFord Touch a few months ago with generally good results.
降低测试时的漏电流对于延长需要周期性自测试的便携式系统电池寿命、提高测试的可靠性和降低测试成本都至关重要。
It is important to reduce leakage power to improve battery life in portable systems employing periodic self-test, to increase reliability of test and to reduce test-cost.
自测试时常是在软件中实现的，但一种纯软件自测试方法在系统级满足要求时，会有若干缺点。
Self test method often carries out under software. But a pure software self test method that can meet request at system level has some disadvantages.
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