grading rules是什么意思 grading rules怎么读
grading rules的用法和样例
- Grading and Standardization of Seed and Seedling of Glycyrrhiza uralensia Fisch.
乌拉尔甘草种子种苗分级标准制定。 - The administrative department for cultural relics of the State Council shall create grading rules and measures for examination and approval.
文物保护工程资质等级的分级标准和审批办法，由国务院文物行政主管部门制定。
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