High frequency (HF) is an electromagnetic frequency defined by the International Telecommunications Union (ITU) for radar and radio communications. It operates in a range of three to thirty MHz and as the wavelengths spread over ten to one hundred meters, it is also known as decameter wave and...
求翻译:HF (high-frequency): Signals in the range of 3 to 30 MHz. In amateur radio, HF is also shorthand for 160-10 meters (1.8 to 29.7 MHz), or the “HF bands.” 160 meters actually falls in the MF range (0.3 to 3 MHz). The 6- meter band (50-54 MHz) is often included i...
Hf 美 英 abbr.(=hafnium)【化】 网络氢氟酸(Hydrogen fluoride);高频(high frequency);氟化氢 英汉 英英 网络释义 abbr. 1. 【化】(=hafnium) 释义: 全部,氟化氢
高频High Frequency(HF)的主要规格A.13.52MHzB.13.54MHzC.13.56MHzD.13.58MHz的答案是什么.用刷刷题APP,拍照搜索答疑.刷刷题(shuashuati.com)是专业的大学职业搜题找答案,刷题练习的工具.一键将文档转化为在线题库手机刷题,以提高学习效率,是学习的生产力工具
A high frequency test prod for electrically contacting at least one contact point of a specimen, using an HF coaxial line to connect the test prod housing and the contact unit electrically and mechanically between the housing and the contact unit, the HF coaxial line having an external conductor...
HFBTHigh Frequency Broadcast Transmitter(E3GS) HFBTHartley Farrow Burrell and Tudor(Architects, London and Thames Gateway, UK) Copyright 1988-2018AcronymFinder.com, All rights reserved. Suggest new definition Want to thank TFD for its existence?Tell a friend about us, add a link to this page,...
place over the Internet backbone itself, which is separate from the PSTN, telephone lines are often still used to form a connection to a computer that itself is directly connected to (and in fact forms part of) the Internet itself... R Pond - US 被引量: 290发表: 2003年 Wireless Industr...
The invention relates to a dielectric response elastomer-composition and the use thereof for producing a laminate and a composite, in addition to the linkage of said composite. The dielectric response elastomer-composition is obtained by the homogeneous distribution of small thermoplastic-particles (7)...
High-Frequency Welding (HFW), alternately known as Radio Frequency (RF) or Dielectric Welding, is an advanced fusion technique used to bond materials using a rapidly alternating electric field. This distinct process involves applying the electric field between two bars, precisely in the joint area,...
The Sonar Vision Mapping System is an advanced environmental mapping and visualization technology. It utilizes high-frequency sound pulses to create a real-time, three-dimensional map of an environment. This system is designed for applications in security, surveillance, and search-and-rescue operations...