作业帮 > 英语 > 作业

请问这句话怎么翻译好?尤其是“we have witnessed.”该怎么翻译?

来源:学生作业帮 编辑:作业帮 分类:英语作业 时间:2024/11/08 05:57:15
请问这句话怎么翻译好?尤其是“we have witnessed.”该怎么翻译?
In the past few years we have witnessed intensive research activity in the development of a variety of electronic devices based on the wide band gap refractory semiconductor GaN, and its related alloys and heterostructures.
翻译:
在过去的近几年内,我们见证了为了发展,以宽禁带半导体氮化镓和其相关合金和异质为基础的,各种电子设备的深入研究活动.