Since the existing assessment methods of sand liquefaction are not mature, there is much limitation in assessing the possibility of deep sand liquefaction.
目前各种砂土液化判别方法均尚不成熟，尤其在对埋深较大的砂层液化的判别上存在着较大的局限性。
Among the existing assessment methods for trustworthy software process, the results are largely based on assessors' knowledge and experience, which will compromise the objectivity of those results.
现有软件过程可信性评估方法中，评估结果往往基于评估人员的主观经验，其准确性和客观性无法得到保证。
Secondly, the analysis of existing performance assessment methods instructor problems.
其次，分析了现行辅导员绩效考核办法存在的问题。
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