Thus, it is urgent and necessary to study and experiment this research.

因此，本课题的研究与实验有其实施的迫切性和必要性。

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I have a good command of professional knowledge, and I am also capable in practice through study and experiment.

我的专业知识精通，而且我还能够在实践中通过学习和实验。

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The study and experiment on the repair of roller journal CO_2 shield welding with proper welding technics has been done by us.

用CO_2气体保护焊方法采用适当焊接工艺及焊接材料，对压榨机辊轴轴颈进行了补焊修复实验研究。

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Slocombe and Zuberbuhler's study is the first experiment to show that vocal sound can carry meaning for chimpanzees.

FORBES: Can Chimps Talk?

But Sandborn considers Smarr a scientist conducting an experiment on himself, and the pilot study is ongoing.

CNN: Tracking your body with technology

Seventy French university students were recruited for the study and told they would be participating in a three-day experiment testing the effects of brightness of video games on visual perception.

FORBES: Study: More Violent Video Game Play Results in More Aggression