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Standards and Recommended Practices
avia. 标准与推荐实例国际民用航空组织出版的
Standard and Recommended Practices
avia. 标准及推荐措施; 标准和推荐实践
standards and recommended practices
avia. 标准与推荐条款
standard and recommended practices
econ. 标准和推荐作法
 English thesaurus
Standards and Recommended Practices
avia. SARPs (MichaelBurov)

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