It is obviously that only taking account of melt handling without considering material melting is not suitable to study twin screw extrusion theory 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。
It is obviously that only taking account of melt handling without considering material melting is not suitable to study twin screw extrusion theory 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。
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