This article introduced some natural vegetable gums, including structure, performance and their use in paper-making.
介绍几种常见植物胶,包括它们的结构、性能及其在造纸工业中的应用。
Design recommendations are given for three aspects of a broad sleeper railroad. including structure, materials, and drainage.
从道床厚度、道床结构与材料、排水三方面论述了混凝土宽枕道床的设计;
Dynamic characteristics of an elastic coupling are expounded in three aspects including structure analysis, dynamics calculation and test.
从结构分析、动力学计算和动力特性实验三个方面阐述并研究了弹性联轴器的动力学特点。
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