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hourglass shaped spring
... hour-glass piston 砂漏形活塞 hourglass shaped spring 中凹形螺旋弹簧 hourglass worm 水漏形蜗杆 ...
基于16个网页-相关网页
Hourglass shaped helical spring
... 中凸形螺旋弹簧 Barrel shaped helical spring 中凹形螺旋弹簧 Hourglass shaped helical spring 板弹簧 Leaf spring ...
基于1个网页-相关网页
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