Mathematical expressions of velocities, shear stresses for Newtonian laminar field near the pins in pin barrel extruder and machine's power are presented.

基于牛顿流体模型，给出销钉机筒挤出机内销钉附近流场的应力分布和速度分布的数学表达式，提出销钉消耗功率的计算方法。

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High compressive stress was observed near the inlet of pin tract in both groups, but even higher one under the active loading condition.

两种载荷方式钉孔处存在较高的压应力，但主动载荷时应力更高。

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Many of them pin milagros near the statue of the Virgin of Guadalupe.

他们中的很多人都在瓜达卢佩的圣母像旁边表演了魔术。

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But Marti, who said he was always outside, didn't hear anything, not even a "pin drop around the house" in the decades he lived near Castro.

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