The internal validitycriteria should be used to define methodological quality in the meta-analysis.
Meta分析中应采用这些评价研究内部真实性的标准来评估研究的方法学质量。
2
Notwithstanding this wide variation and lack of uniform consensus, the validity of these criteria has not been previously biomechanically assessed to the authors' knowledge.
这个范围较宽泛，也没有被较多人认可，而据作者所知，目前这个标准的有效性还没有在生物力学上得到评估。
3
This issue under the criteria for Course of the validity of the mathematical operations, mainly to explore the mathematical operations to enhance the effectiveness of the implementation of the way.