Initialism for no problem

• Informal reassurance or acceptance

缩写，表示没问题

• 非正式的安慰或认可

Initialism for now playing

• Label for currently playing media

缩写，表示正在播放

• 用于标注当前播放的媒体

Initialism for notary public

• Licensed official who certifies documents

缩写，表示公证人

• 依法办理公证的人员

Initialism for nurse practitioner

• Advanced practice registered nurse

缩写，表示（高级）执业护士

• 具高级资质的护理专业人员

Initialism for national park

• Protected area managed for conservation and recreation

缩写，表示国家公园

• 为保护与游憩而管理的保护地

Initialism for noun phrase

• Grammatical phrase headed by a noun

缩写，表示名词短语

• 以名词为核心的语法成分

Initialism for nanoparticle

• Particle sized on the nanometer scale

缩写，表示纳米颗粒

• 处于纳米尺度的微粒

Abbreviation for nondeterministic polynomial time (complexity class)

• Decision problems verifiable in polynomial time by a nondeterministic machine

缩写，表示非确定性多项式时间复杂度类

• 由非确定性图灵机在多项式时间内可验证的判定问题

Abbreviation for nosocomial pneumonia

• Pneumonia acquired during a hospital stay

缩写，表示医院获得性肺炎

• 住院期间感染的肺炎

Bibliographic abbreviation for no pagination

• Indicates a work without page numbers

书目缩写，表示无页码

• 标示无页码的出版物

Bibliographic abbreviation for no place of publication

• Indicates missing place of publication information

书目缩写，表示无出版地

• 标示缺少出版地信息