... threaded plug gauge 螺纹塞规 threaded plug 螺纹塞 threaded tube 两端有螺纹的管子 ...
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threaded plug gauge 螺纹塞规
threaded loading plug 装药螺塞
's Amplatzer is a fabric-mesh patch threaded through catheters to plug the hole.
NPR: Heart Repair Breakthroughs Replace Surgeon's Knife
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