自在关节

【医】 universal joints

自的英语翻译：

certainly; from; of course; oneself; self; since
【建】 auto-

在的英语翻译：

be; depend on; exist; at; in
【计】 plot on X axis; search in

关节的英语翻译：

articulation; joint; key links
【医】 arthr-; arthro-; arthron; article; articulatio; articulation
articulationes; articuli; articulus; artus; joint; junctura; syntaxis