拉链,拉锁;
polyformaldehyde resin zip fastener production line imported from ltaly
引进意大利聚甲醛树脂拉链生产线
the swedish engineer who invented the zip fastener made a greater intellectual leap than many scientists do in a lifetime.
发明拉链的瑞典工程师在思维上作出的飞跃比很多科学家一生所作出的还要多。
The zip fastener had long since been wrenched out of them.
拉练早已取走了.
a zip fastener is used to join the edges of a garment, or a bag.
纽扣是用来连接衣服或袋子边沿的。
Sadly , the original zip fastener , invented in 1893 by Whitcomb L.
1893年芝加哥工程师威特科姆·L·贾德森发明了拉链.
Who invented the zip-fastener?
谁发明了拉链?
Close the zip fastener up to the wire strands.
将拉链一直拉到钢丝索。
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