Basic knowledge of polyethylene material, pipe fittings specifications, pipeline construction specifications, technical points, management experience and design parameters.
聚乙烯材料基础知识、管材管件规格、管道的施工规范、技术要点、管理经验及设计参数。
And content in the next we introduce the basic knowledge of OTFTs, including common device structures, OTFTs works, material selection and preparation, and crafts.
并在接下来的内容里介绍了OTFT的基本知识，包括常见的器件结构、OTFT的工作原理、材料选择和制备工艺等。
Vocabulary, as one of the three essential components that constitute language knowledge, is the basic building material of all languages.
词汇作为语言的三大要素之一，是语言的基本建筑材料。
Vocabulary, as one of the three essential components that constitute language knowledge, is the basic building material of all languages.
词汇作为语言的三大要素之一，是语言的基本建筑材料。
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