本文简述了路面水泥砼配合比设计的依据，设计要求，设计参数及其计算方法，并概略的介绍了正交试验法。
The authors introduce conditions of mix design of pavement cement concrete, demand of design, parameter of design and calculating ways, and introduce orthogonal trial method briefly .
本文通过作者掌握的试验数据及有关资料，简述了集装箱底板用胶合板的特点，并对该产品的质量要求提出了建议。
Based on the test data and information maintained by the author, this paper deals with the characteristic and quality requirement of container plywood flooring.
本文简述电子电气产品对绝缘系统的要求，以及在产品的安全测试中抗电强度试验和对测试仪器作运行检查的重要性。
This paper briefly introduces the requirements about the insulation system of electronic product, and describes the importance of functional check and Dielectric strength in safety test.
本文简述电子电气产品对绝缘系统的要求，以及在产品的安全测试中抗电强度试验和对测试仪器作运行检查的重要性。
This paper briefly introduces the requirements about the insulation system of electronic product, and describes the importance of functional check and Dielectric strength in safety test.
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