英文字典中文字典


英文字典中文字典51ZiDian.com



中文字典辞典   英文字典 a   b   c   d   e   f   g   h   i   j   k   l   m   n   o   p   q   r   s   t   u   v   w   x   y   z       







请输入英文单字,中文词皆可:


请选择你想看的字典辞典:
单词字典翻译
pictorius查看 pictorius 在百度字典中的解释百度英翻中〔查看〕
pictorius查看 pictorius 在Google字典中的解释Google英翻中〔查看〕
pictorius查看 pictorius 在Yahoo字典中的解释Yahoo英翻中〔查看〕





安装中文字典英文字典查询工具!


中文字典英文字典工具:
选择颜色:
输入中英文单字

































































英文字典中文字典相关资料:


  • What do Rw, DnTw, and Dw mean for sound insulation? - ACA Acoustics
    Rw, DnTw, and Dw are all different indices which describe sound insulation performance – or how much noise will transmit through a wall or floor Having different indices can be confusing and misunderstanding these terms could mean your building fails the final sound tests
  • Sound Insulation Terms and Definitions - Acoustic Glossary
    Sound Insulation is the ability of building elements or structures to reduce sound transmission and is measured over a range of frequencies, normally 100 ~ 3150 Hz On-site results often fall short of laboratory measurements due to the flanking transmission
  • Understanding Acoustic Ratings: STC vs RW vs DnTw
    Acoustic ratings are determined in highly scientific laboratory tests, but we can focus on two critical elements that are always looked at: frequency, which is measured in hertz (Hz), and decibels (dB) Frequency could be called the pitch of the sound and is determined by how frequently sound waves follow on each other
  • The importance of Dw and Rw in Sound Insulation Testing
    Rw relates to the laboratory rated sound reduction index of a single element making up a partition wall floor type A laboratory test measures the wall performance in isolation of potential flanking paths, it is achieved off-site
  • Acoustics - Rw and Dw DnTw - Whats the difference? - LinkedIn
    Rw relates to the laboratory rated sound reduction index of a single element, i e a wall A laboratory test measures the wall performance in isolation from any other sound flanking
  • Acoustic Terminology - Technical Terminology for You - CMS Danskin
    To save you an unwanted headache, we've complied a list of Acoustic terminology that you may require during the planning and design process
  • Soundproofing Jargon Explained - soundservice. co. uk
    Soundproofing explained, what is noise and how is noise measured? the meaning of acoustic symbols and decibels, information on Robust Details and Part E
  • Acoustic Terms and definitions – ICAN Acoustics
    Sound Insulation is the ability of building elements or structures to reduce sound transmission To compare sound insulation properties you need to take into account the area of the dividing partition wall, as well as the volume and sound absorption properties of the receiving room
  • Chris cuts though the jargon of Rw and Dw - MACH GROUP
    In fact by careful design and attention to construction details, the build ups of wall types can be engineered to reduce unnecessary overspend on thicker or denser plasterboard products and still maintain the on-site acoustic performance
  • A Basic Guide to Sound Insulation Testing - UK Building Compliance
    Airborne Values (DnT,W + Ctr dB) represent the weighted, standardised level difference between a source room and receiver room (i e how much quieter the receiver room is) (DnT,W) with an added correction term (Ctr), which characterises the level difference with respect to urban traffic noise





中文字典-英文字典  2005-2009