理学 数字电视 释 high definition television; HDTV 高清电视 一种新的电视业务。采用数字信号传输，拥有极佳的视频、音频效果，其宽高比为16∶9，已有3种显示分辨率格式：720P（1280×720，逐行）、1080i（1920×1080，隔行）和1080P（1920×1080，逐行），帧率达60fps，支持杜比5.1声道多路环绕立体声。HDTV是high definition television的英文缩写，其中文意思是“高清晰度电视”，源于数字电视（digital television，DTV）技术，采用数字信号，拥有最佳的视频、音频效果。
计算机应用 多媒体 释文 high definition television, HDTV 高清电视
- excitation energy
- excitation equipment
- excitation flow
- excitation function
- excitation labeling
- excitation lifetime
- excitation light source
- excitation mechanism
- excitation of hydrogenerator
- excitation of synchronous motor
- excitation of turbulence
- excitation potential
- excitation spectrum
- excitation system
- excitation system ceiling voltage ratio
- excitation system of hydro-generator
- excitation system protection
- excitation system voltage response ratio
- excitation system with AC exciter and rotary silicon rectifier
- excitation system with AC exciter and stationary rectifier
- excitation system with DC exciter
- excitation temperature
- excitation wavelength
- excitatory neuron
- excitatory postsynaptic potential