Above-mentioned phenomena need to be explained by a new extrusiontheory, which deals with the melting process in a smaller dimension of material size.
上述现象需要一项新理论予以解释，这一理论能够说明较小尺度物料的熔融过程。
2
It is obviously that only taking account of melt handling without considering material melting is not suitable to study twin screw extrusiontheory thoroughly.
显而易见，只讨论熔体输送而不讨论物料熔融，对全面研究双螺杆挤出理论是很不够的。
3
Extrusiontheory and rheology theory have been applied to the force and energy parameters aiming at the stopping clay shaper in the ironmaking workshop of Anshan iron and Steel Company in the paper.