Tubes plastic processing is the secondary processing, so the tubes plastic processing belongs to the field of further machinery technology.
由于管形件塑性加工是指对管坯的二次加工,因此管形件塑性加工属于管坯深加工技术的范畴。
参考来源 - 管形件塑性成形过程有限元模拟研究·2,447,543篇论文数据，部分数据来源于NoteExpress
Handbook of Poultry Science and Technology, Volume 2, Secondary Processing.
家禽科学和技术手册，第2卷，二次加工。
This change through secondary processing, the nature of the starch is called modified starch.
这种经过二次加工，改变性质的淀粉统称为变性淀粉。
About 90% Of the total sulfur in sour crude will enter into various secondary processing units.
含硫原油中约90%的硫都将进入二次加工的各工艺装置中。
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