These symptoms include decreased mobility, increased joint stiffness, and pain.

这些症状包括降低流动性，增加关节僵硬，疼痛。

Constant pain and progressive joint stiffness should be highly suspected of infection.

关节置换后持续性疼痛和进行性关节僵直应高度怀疑深部感染。

These symptoms include decreased mobility, increased joint stiffness, inflammation and pain.

这些症状包括降低流动性，增加关节僵硬，发炎和疼痛。

The effect of various factors on the joint stiffness is also simulated by using the model, which shows reasonable results.

文中还应用模型对各种因素对接头刚度的影响规律进行了模拟 ，所得结果是合理的。

Tested the joint stiffness based on "deflection method", and analyzed the factors that affect joint stiffness according to the test results.

基于“挠度法”，对节点刚度进行了测试。根据测试结果，分析了影响节点刚性的各种因素。