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1. 松动：*人工关节松动(Loosening)这是人工关节置换术最常发生的并发症. 以全人工膝关节为例,手术五年后,发生松动的机率约3% ~ 5%亦不常见. *人工关节脱位(Dislocation)较常发生于全人工髋关节,发生率约3%左右,大部分发生于术后不久,
2. 放松：looseconstruct松散性结构 | loosening放松 | looseningofassociations联想散漫
3. 松散：loosenedrock 软弱的岩石 | loosening 松散 | loosepiece 活块
4. 松开：loop with quarter roll recovery 四分之一側滾改出觔斗 | loosening 鬆開 | loose joint 鬆接合
noun
1. the act of making something less tight
Synonym: laxation
2. an occurrence of control or strength weakening
e.g. the relaxation of requirements
the loosening of his grip
the slackening of the wind
Synonym: relaxationslackening