... 折叠paper stack 折刀folding blade 折插页或环衬的折页机loop folder ...
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... folder-gluer 折叠-粘合机 folding blade 折页刀 folding cylinder 折页滚筒 ...
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blade folding 桨叶收折
rotor blade folding 旋翼桨叶收折
blade folding operating ram 折迭桨叶操纵顶杆
·2,447,543篇论文数据，部分数据来源于NoteExpress
If you're interested in a folding blade knife, examine the pivot point thoroughly.
如果你对折刀感兴趣，检查在刀子开合的时候承受力的转轴。
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