Can strips of plastic be united with epoxy?
塑料带以用环氧树脂黏
起来吗?
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The result is a wonderful surface for writing on-papyrus went on being used across the Mediterranean until about a thousand years ago, and indeed gave most European languages their very word for paper.
纸莎草有机纤维会自然地缠绕在一起,不需要胶水黏合,十分方便。最后我们得到
便是一张极适合书写
光滑纸面。莎草纸在地中海地区广泛使用,直到一千年前才被替代。莎草纸也是欧洲各国语言中纸一词
来源。
It is composed of what sounds like a bizarre mixture: fly-ash, a fine-grained waste product from coal-fired power stations; carbon nanotubes, cylindrical molecules made of elemental carbon; and two binding agents, sodium silicate and sodium hydroxide.
煤灰,火力发电厂排放细颗粒废弃物;碳纳米管,即柱状
碳分子;还有两种黏合剂:硅酸钠和氢氧化钠。
The arrangement essentially is that among the basic building blocks of matter are quarks; these are held together by particles called gluons; and together quarks and gluons form protons and neutrons, the stuff of the atom's nucleus.
这种安排其实说明,在物质基本材料中有夸克;夸克由名叫胶子
粒子黏合在一起;夸克和胶子一起形成了原子核
材料,即质子和中子。