使用简写的类型声明，而不是它的全泛型版本。
Prefer the shortcut versions of type declarations over the full generics syntax.
启动建设50种基于泛在学习的课程全媒体数字教材建设，探索全媒体数字教材的推广与应用模式。
Start the construction of 50 kinds of media digital teaching materials based on ubiquitous learning, and explore the promotion and application of all media digital teaching materials.
将波动方程反演的目标泛函加入全变差约束项，提高反演过程的稳定性和反演结果的分辨率。
The total variation constraint item is added to the wave equation inversion objective functional, to improve the stability and the resolution of inversion.
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