Because geometrical tolerances of manufacturing hip joint prostheses matching section are usually not strict, hip joint prostheses can be manufactured without CNC machine tool.

通常髋关节股骨侧假体匹配段尺寸公差要求并不严格，加工这种髋关节股骨侧假体可不采用数控加工中心。

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Creating a new hip takes an amazingly precise machine.

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And for those who cringe at the idea of being touched by a security official, or are forever assigned to a pat-down because they had hip replacements, for example, the machine is a quick and easy way to avoid that contact and hassle, he said.

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