Comparison of common pressure drop models is also given, and the results indicate that the model in this paper has the little error and is well consistent with the real case.

与常用的旋风器阻力计算模型对比表明，该模型与试验结果的误差较小，具有较好的吻合性。

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Most crib makers have stopped producing drop-side models and now sell what they call "modern" cribs, in both contemporary and classic styles.

WSJ: Manufacturers Discuss Safety Features of the 'Modern' Crib

The show is a must-see for any architectural professional or student of architecture, but the studies, notes and axonometric diagrams that record his thoughts and design process may be a little hard going for a general public more accustomed to dramatic sequences of photographic images and drop-dead models of buildings in proper chronological order.

WSJ: Notes from the Archive: James Frazer Stirling, Architect and Teacher, at the Yale Center for British Art | Postmodernism's Pivotal Figure | By Ada Louise Huxtable

In my models, I had anticipated a drop because of new products and new technologies in those products.

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