主进料口弧度尺寸与注塑机喷嘴弧度相配。

D. The material - radian size and injection plastic machine nozzles radian match.

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计算结果表明迭代计算是收敛的，算出的喷嘴喉口面积与实际相符。

The calculations indicate that the iterating calculation is converged and the calculated throat area of nozzle accords with practicality.

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通过分析对撞式流化床气流粉碎机的喷嘴结构、分级叶轮型式、加料口位置及底部结构等，阐述了该型气流粉碎机的结构型式及特点。

The paper presents the internal structures and performance features of the fluidized bed opposed jet mill based on the jet nozzles structure, impeller types, feeding inlet and bottom structure.

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