The analysis of chemical composition, hardness and microstructure and quality inspection of surface processing have been done to metal bone screw which was fractured in human body.

对断裂的金属接骨螺钉进行了化学成分、硬度、显微组织分析及表面加工质量的检测。

youdao

BACKGROUND: Common metal bone fracture plate had powerful stress force shelter reaction in fixed bone segments and moreover, is has no induction and guiding reactions in bone growth.

背景：普通金属接骨板对固定骨段具有强大的应力遮挡作用，且对骨组织生长无诱导及引导作用。

youdao

They can also be made of plastic, animal bone or metal.

它们也可以由塑料、动物骨头或金属制成。

youdao

Severe breaks may require an operation to hold the bone together with metal plates and screws.

VOA: special.2009.02.04

Medtronic 's ( MDT - news - people ) spine surgery business is dominated by a procedure called spinal fusion, in which two of the segments of the backbone, called vertebrae, are fused together using metal rods and cages, bone taken from elsewhere in the body, and protein drugs that stimulate bone growth.

FORBES: Neurosurgery

Humans have been making needles for more than 20, 000 years, first out of bone and more recently out of metal.

FORBES: No. 13 The Needle

Michie's Whale Skull Bone will be made using a metal framework inside a carved dense polystyrene material which is then coated in reinforced concrete.

BBC: Sculptures selected for Dunnet Head and beach