The paper deals mainly with the study of rational structure of a lathe bed by model tests.

本文主要论述运用模型试验来研究车床床身的合理结构。

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By model tests, the influence of operation parameters on the classifier's performances was studied.

通过模型实验，探讨了操作参数对选粉机分级性能的影响规律。

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In this paper, the characteristics of ice force on conical structure has been studied by model tests.

通过冰力模型试验，研究了锥体冰力的特征。

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To choose the safest model, Rader recommends starting by looking for vehicles with the top rating in all crash tests, plus those that incorporate ESC.

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