“four roller double apron drafting mechanism”的概念、定义、翻译、参考文献-科学参考

单词	four roller double apron drafting mechanism
释义	four roller double apron drafting mechanism Encyclopedia 工学喷气纺纱机释 four roller double apron drafting mechanism四罗拉双胶圈牵伸装置喷气纺纱机主要的牵伸装置。
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