空心螺钉 meaning in English

hollow screw

Compression couplings - hollow screws for ring - type banjos
压紧联轴节.环形鼓形管用空心螺钉
Overflow valves and hollow screw for fuel injection devices
燃料喷射装置的溢流阀和空心螺钉
Compression couplings with olives ; hollow screw fittings and ring connection fittings for use with union nuts
橄榄形压紧联接器.与管接头配用的空心螺钉管接头和环
Anatomic study and clinical application of anterior hollow screw fixation in the treatment of odontoid fracture
前入路空心螺钉内固定治疗齿状突骨折的解剖学测量及临床应用

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