目的在于研究镇痛方法与术后并发症的相关性。The objective is to study the relativity between analgesia methods and operation complication.田间植株蚜数与同块田内病毒的扩散程度间无相关性.Aphid count on plants in fields do not correlate with virus spread in the same fi...

“相关性”的英语可以翻译为：elativity，[计] interdependency，[经] reciprocity，pertinence，pertinency ...