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Besides being for play, they can also be of practical use, as part of finery, bedding and foodstuff.

除了玩，也可以实际使用，作为服饰，床上用品和食品。

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The correlation between the results of analysis and vehicle running test measurements is fairly good. The linear generator system thus expected to be of practical use.

分析和运行试验测量的结果有良好的相关性，有望将线性发电机投入实际应用。

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Although von Helmholtz was not the first person to develop an ophthalmoscope, nor the first to examine the interior of the eye, his device was the first to be put to practical use.

虽然冯·霍尔兹曼既不是第一个发明检眼镜的人也不是第一个进行眼睛内部检查的人，但他的发明是第一个被用于实践的设备。