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：

Argonautic    
a. Argo号船员的,Argo号远征的

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:


  • TITLE 32: ENERGY - Illinois General Assembly
    A layer of gas-permeable material shall be placed under all concrete slabs and other floor systems that directly contact the ground and are within the walls of the living spaces of the buildings, to facilitate future installation of a sub-slab depressurization system, if needed
  • Venting Design Procedure - CUPOLEX®
    Conceptual diagram of an SSD system Sub-slab ventilation (SSV): Clean air flowing under the floor slab dilutes the concentrations of sub-slab vapors, minimizing the resultant impact on indoor air if the vapors subsequently enter the building due to advective flow or diffusion through any openings in the floor (e g , EPA, 2008)
  • ITRC Technology Information Sheet - vim-1. itrcweb. org
    a passive sub-slab venting system is to vent to the exterior atmospherecontaminant vapors that have accumulated beneath a structure Combined with a passive barrier, contaminant vapors are captured and rerouted through a passive venting system to prevent contaminant vapors from entering the building and accumulating within the indoor air
  • Radon Mitigation Systems for Commercial Buildings - Cabeno Environmental
    The radon mitigation system cost varies based on the type of foundation and the mitigation method required Our team will assess your property and recommend the most economic and effective solution We offer sub-slab depressurization for slab-on-grade buildings and sub-membrane depressurization for structures with crawl spaces
  • Vapor Mitigation systems - IN. gov
    they do not have fans The goal of the system is to passively vent contaminant vapors accumulating beneath the slab by rerouting them to the atmosphere Thermal and atmospheric effects induce upward convection of air through the riser venting system They may induce a small vacuum to the sub-slab but airflow to dilute the concentration
  • Section 422 - Illinois General Assembly
    D) An Illinois Mitigation System Tag shall be placed on the vent pipe next to the mitigation system monitor This label shall be purchased from the Agency and include the following information: "Radon Reduction System"; the installer's name, phone number and the Illinois license number; the date of installation; and an advisory that the
  • How Much Does A Radon Mitigation System Cost? - The Pricer
    Passive sub-slab depressurization – Uses natural gas dissapation and ventilation only, averaging $800 to $1,500 (≈2 5 weeks of non-stop employment at $15 hour) installed Sub-membrane depressurization – Ideal for crawlspaces at $1,500 to $3,000 (≈1 1 months of non-stop employment at $15 hour) installed
  • Sub Slab Ventilation for a Radon-Free Safe Home - Sutton, MA
    One effective way to mitigate radon levels in buildings is by employing sub slab ventilation systems Here are the advantages of sub slab ventilation: Radon Mitigation: The primary purpose of a sub slab ventilation system is to effectively reduce indoor radon levels, minimizing health risks associated with long-term exposure Health and Safety: By mitigating radon levels, these systems
  • Everything You Need to Know About Sub-Slab Vapor Intrusion . . . - EPRO
    A sub-slab depressurization (SSD) active vapor collection system involves the use of a blower or electric fan The installation of a suction pit or plenum in the sub-slab allows for contaminated vapors to rise to the surface and into the structure The electric fan then forces out the chemical vapors and releases them outside of the structure
  • How Much Does Radon Mitigation Cost? – Forbes Home
    Like active sub-slab soil depressurization systems, they use a fan and suction system that draws out radon gas and directs it away from indoor spaces These systems usually cost between $800 and
  • Active Mitigation Fact Sheet – vim
    Sub-slab ventilation (SSV)—SSV is an active engineering control employed to mitigate buildings at or near vapor intrusion sites The goal for SSV is to reduce vapor concentrations below a structure’s slab to levels that are low enough to maintain acceptable indoor air concentrations above the slab, regardless of whether there is a
  • Vapor Intrusion Mitigation Advisory – Sway Features
    If the passive system is built in the subsurface, an upgrade to an active sub-slab venting system is possible Sub-slab Ventilation systems can be used in both existing and new construction For existing buildings, Sub-slab Ventilation is most suitable where the sub-slab fill material is highly permeable to allow for appreciable air exchange
  • New Construction Radon Mitigation Codes | VSI Radon Reduction Corp.
    D Vent Pipe A 3- or 4-inch gas-tight or PVC pipe (commonly used for plumbing) runs from the gas-permeable layer through the house to the roof to safely vent radon and other soil gases above the house E Junction Box An electrical junction box is installed in case an electric venting fan is needed later Additional Resources
  • U. S. Environmental Protection Agency | US EPA
    U S Environmental Protection Agency | US EPA
  • Residential Radon Mitigation and Testing Services - SWAT Environmental
    Reduce and Eliminate Radon From Your Home Radon is a serious health concern for homeowners Radon is an invisible, odorless and tasteless gas that is a known carcinogen and is responsible for over 20,000 lung cancer deaths in the United States each year





中文字典-英文字典  2005-2009