科学参考-科学技术类参考文献及词汇Science Reference

科学参考收录了5291条科技类词条，基本涵盖了常见科技类参考文献及英语词汇的翻译，是科学学习和研究的有利工具。

热门查询：

non-blocking	non-deterministic	non-dialable toll points	non dispersion-shifted fiber (NDSF)	non-facility associated signaling (NFAS)
non-line-of-sight (NLOS)	nonpersistent carrier sense multiple access (Nonpersistent CSMA)	Nonpersistent CSMA (Nonpersistent Carrier Sense Multiple Access)	non-real-time (nrt)	non real-time variable bit rate (nrt-VBR)
non-repudiation	non-return-to-zero (NRZ)	non-wireline carrier	non-wireline carrier	Nordic Mobile Telephone (NMT)
Nordic Mobile Telephone (NMT)	normal	North American Numbering Council (NANC)	North American Numbering Plan (NANP)	North American Time Division Multiple Access (NA-TDMA)
NOS (Network Operating System)	notation	Not To Act Like It)	Novel Services)	NPAC (Number Portability Administration Center)
NPA (Numbering Plan Administration)	N-PCS (Narrowband Personal Communications Services)	NREN (National Research and Education Network)	nrt	nrt-VBR (non real-time Variable Bit Rate)
NRZ (Non-Return-to-Zero)	NSF (National Science Foundation)	NT1 (Network Termination 1)	NT1 (Network Termination 1)	NT2 (Network Termination 2)
NT2 (Network Termination 2)	NTACS (Narrowband Total Access Communications System)	NTIA	NT (Network Termination)	NTSC (National Television Standards Committee)
null	null modem	numbering plan administration (NPA)	Numbering Plan Area (NPA)	number portability
Number Portability Administration Center (NPAC)	Numbers	numerical aperture (NA)	NXX	NXX
NXX	Nyquist, Harry (1889–1976)	Nyquist theorem	NZDF (Non Zero Dispersion-Shifted Fiber)	O
OADM (Optical Add/Drop Multiplexer)	OAM&P (Operations, Administration, Management, and Provisioning)	O&M (Operations and Maintenance)	O-Band (Original Band)	oblique

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