The aerospace product system is huge and complicated, and the factor of the influence quality is also varied, and the quantified evaluation is always hard to resolve.
航天产品系统庞大而复杂，影响质量的因素也多种多样，量化评估一直是难题。
The aerospace product system is huge and complicated, and the factor of the influence quality is also varied, and the quantified evaluation is always hard to resolve.
航天产品系统庞大而复杂，影响质量的因素也多种多样，量化评估一直是难题。
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