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：

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:


  • Facts About Wearable Technology | Radiation and Your Health | CDC
    Wearable technology uses low-powered radiofrequency (RF) and emits a type of non-ionizing radiation
  • EMFs In The Workplace (96-129) | NIOSH | CDC
    Everyone in our modern society is exposed to the electric and magnetic fields (EMFs) that surround all electric devices Recently, scientific studies have raised questions about the possible health effects of EMFs
  • National Institute for Occupational Safety and Health (NIOSH)
    Learn about NIOSH and access information on workplace safety and health
  • Manual for Measuring Occupational Electric Magnetic Field Exposures . . .
    This NIOSH technical document is a reference work for industrial hygienists and researchers who measure occupational exposures to electric and magnetic fields (EMF)
  • HHE Report No. HETA-2009-0171-3119, Evaluation of ElectromagneticField . . .
    The ICNIRP reference levels for time-varying EMF (up to 300 Hz) are based on short-term, immediate health effects such as stimulation of peripheral nerves and muscles, shocks and burns caused by touching conducting objects, and elevated tissue temperatures resulting from absorption of energy during exposure to EMF [ICNIRP 1998]
  • Radiation Hazard Scale | Radiation Emergencies | CDC
    About the radiation hazard scale This tool provides a frame of reference for relative hazards of radiation It also: Provides a frame of reference for relative hazards of radiation Conveys meaning without using radiation measurements or units that are unfamiliar to people Is designed for use only in radiation emergencies and is applicable for short-term exposure durations, for example, over
  • Benzene | Chemical Emergencies | CDC
    Benzene is a colorless or light-yellow liquid chemical at room temperature Signs and symptoms of benzene poisoning depend on how you were exposed Get clean and get medical care if you were exposed
  • Instructions for Classifying the Underlying Cause-of-Death, ICD-10, 2025
    Instruction Manual Part 2a Instructions for Classifying the Underlying Cause of Death, 2025 U S Department of Health and Human Services Centers for Disease Control and Prevention National Center for Health Statistics SECTION I - INSTRUCTIONS FOR CLASSIFYING THE UNDERLYING CAUSE OF DEATH, 2025 A INTRODUCTION This manual provides instructions to mortality medical coders and nosologists for
  • Mold | Mold | CDC
    Mold can look like spots of many different colors, and it can smell musty If you see or smell mold, you should remove it If mold is growing in your home, you need to clean up the mold and fix the moisture problem Learn what mold is, how to prevent it, and how to clean it up
  • About Chickenpox | Chickenpox (Varicella) | CDC
    Learn about chickenpox, signs, prevention, how the disease spreads, and common myths





中文字典-英文字典  2005-2009