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单词
herbage seed quarantine
释义
herbage seed quarantine
Encyclopedia
农学
草类植物种子检疫
释
herbage seed quarantine
草类植物种子检疫
根据国家或地区有关法规,为防止草类植物种子有害生物人为传播,杜绝危险性有害生物的输入和输出,或确保这些有害生物得到官方控制,而由行政部门所采取的综合措施,具有强制性、预防性、战略性、权威性和国际性等属性。
随便看
covering homotopy theorem
covering isotopy
covering lemma
covering Lie group
covering linkage invariant
covering manifold
covering map
covering number
covering of a group
covering of a manifold
covering of a plane
covering of a set
covering of a space
covering of a surface
covering of a topological space
covering of finite order
covering of finite type
covering of Vitali
covering path
covering point
covering polyhedron
covering problem
covering projection
covering property
covering radius
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