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单词
useful
释义
useful
a.
实用的;有用的;有助益的
泛指满足特定用途的能力,可指现在和将来的用途。在专利法中,一项发明的「有用」是指它可使用于所设定的目的,并对社会产生有益的效果,而且不违背法律、道德和公共政策。在美国,宪法和国会授予某项发明以垄断的权利,就是以其实用性作为基本交换条件,即公众可以从中获益。
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departmental doctrine
Department of Defence
Department of Defense Intelligence Agency
Department of Education
Department of Energy/D.O.E.
department of government
Department of Housing and Urban Development
Department of State
Department of Transportation/DOT
department rule
department store index
departure
departure in amended pleading
departure in despite of court
depecage
depeculation
dependant
dependency
dependency exemption
dependent
dependent bill
dependent conditions
dependent contract
dependent covenant
dependent coverage
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更新时间:2026/5/23 2:53:43