而且如果需要编写测试，通常都是十分简单、覆盖方法的主要功能目标的测试。
More often than not, if they do write tests, they're typically very simple, covering the method's main functional aim.
研究了水、氯离子及气体在混凝土中的渗透与扩散的机理，分析了影响混凝土渗透性的主要因素及有待进一步研究的方向，并总结了混凝土渗透性指标的测试方法。
Research mechanism of diffusion and infiltration of concrete, analyze the main influence factor of the concrete permeability and summarized the method of testing of the penetrating index of concrete.
该文主要介绍了CQC高清显示认证的要求及主要常温性能指标的测试技术。
This article mainly introduced the CQC authentication of the HD shows normal requirement and main performance of testing technology.
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