This technique takes advantage of the large difference in etching properties for different crystalloThis technique takes advantage of the large difference in etching properties for different crystallo
这项技术利用了硅的不同晶面在碱性腐蚀溶液中具有不同腐蚀速率的特性。
formal a very large difference between two opinions or groups of peopleformal a very large difference between two opinions or groups of people
(两种观点或两个团体之间的)深刻分歧,显著差别 There is still a vast economic chasm between developed and developing countries. 发达国家和发展中国家之间仍然存在着巨大的经济差距。