The necessity and the basic standard and application of quality management system of environmental impact assessment are reviewed.
论述了环评质量管理体系构建的依据标准及其应用情况，环评质量管理体系构建的必要性。
The basic principle of pearl processing and the simple standard for judging the quality of pearl processing were introduced in this paper.
本文介绍了珍珠加工的基本原理，并提出作为评判珍珠加工质量的简单标准。
The technical title evaluating standard is a basic standard for guaranteeing the developing level and quality of sci-tech human resource.
职称评定标准是保证科技人力资源开发水平和质量的根本标准。
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