Extruding velocity, temperature of billet and container, die roughness and the chemical composition of the billet are the major factors which affect the surface quality of the extruded product.

挤压速度、挤压毛坯的温度、型腔温度、模具的表面粗糙度以及挤压毛坯的化学成分是影响热挤压件表面质量的主要因素。

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Extremely wet sticky glutinous rice flour, a small group had to hand-pulling the wet surface, extruded into a wafer shape.

湿糯米粉粘性极强，只好用手揪一小团湿面，挤压成圆片形状。

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The gas inside the rubber ball is extruded out via the opening and a round recess is arranged at the periphery of the tongue surface opening.

橡胶皮球内的气体可通过该开口挤压而出，在舌面开口的周围有一圆形凹陷。

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