inflexibility of large joints 大关节不利
large size cast-steel joints 超大型铸钢节点
large bellows expansion joints 大型波纹管膨胀节
Generally, a few large joints are involved, such as hip or knee.
主要累及大关节，比如髋关节或膝关节。
It can also affect large joints, such as the hips and knees and about a third of people with psoriatic arthritis also have a stiff painful lower back or neck.
它也能影响大关节如髋关节和膝关节，大约三分之一患这种病的人同样有腰部和颈部疼痛僵硬症状。
Large quantities of water may also be stored in limestones when joints and cracks have been enlarged to form cavities.
当接缝和裂缝扩大形成空洞时，大量的水也会被储存在石灰岩中。
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