Construction is a combination of workmanship and choice of materials. Take this computer, if I pull the silicon out, I replace it with gallium arsenide, leave everything else the same.
构造则是技巧和材料的选择,的结合，拿这个电脑为例，如果我将硅取出，替换成砷化镓，其他东西不变。
2
The research progress on extraction of gallium from different raw materials is summarized, and enhancing experiment on extracting technology of gallium is proposed.
对从不同原料中提取金属镓的研究进展进行了综述，并提出应加强金属镓提取技术的研究与开发。
3
Silicon, germanium and gallium arsenide are popular materials used in ICs and semi-conduct devices, while silicon is the most popular one.