有目的地影响复合系统的振动特性是开发工程师的现实任务。
Vibration characteristics of a complex system directly to influence is a current problem for engineers.
选择一个度假旅游目的地可以是一个对许多人来说有一点困难的任务。
Choosing a vacation travel destination can be a slightly difficult task for many people.
选择一个度假旅游目的地可以是一个对许多人来说有一点困难的任务。
Choosing a vacation travel destination can be a slightly difficult task for many people.
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