英语语法分析

The increased synthesise of the central algogenic substance may be the mechanism of relieving pain.

镇痛机理是可能增加中枢镇痛物质的合成。

Purpose to approach to algogenic causes and parts of knee joint retrograde degeneration, except osseous causes.

目的：探讨膝关节退行性变除骨性原因之外的致痛原因与部位。