求翻译：工程质量应当达到协议书约定的质量标准，质量标准的评定以行业的质量检验评定标准为依据。因承包人原因工程质量达不到约定的质量标准，承包人承担违约责任。是什么意思？

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Quality of the project agreement should be reached an agreement in the grading standards of quality and standards of quality in industry-based standards assessed the quality testing. For the contractor who works for reasons of quality standard quality reach agreement to the contractor who bear the l

The project quality must achieve the agreement agreement the quality specification, the quality specification evaluation take the profession performance test evaluation standard as the basis.Because the contractor reason project quality could not achieve the agreement the quality specification, the

Engineering quality should reach agreement with the agreed quality standards, quality standards and assessment is based on the industry standard for quality inspection and assessment. Project quality for contractors reasons do not meet the quality standards of the appointment, the contractor liable

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