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3H查看　3H　在百度字典中的解释百度英翻中〔查看〕
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  • 3 Hour Timer - YouTube
    Set a timer for 3 hours with the 3-hour countdown timer with an alarm Online Timer - https: timer onlinealarmkur com en more
  • Tritium - Wikipedia
    Tritium (from Ancient Greek τρίτος (trítos) 'third') or hydrogen-3 (symbol T or 3H) is a rare and radioactive isotope of hydrogen with a half-life of 12 32 years
  • Tables - Three H
    Join the Three H community and receive exclusive newsletters about new products and other news
  • 00:03:00:00 - Online Stopwatch
    Use this timer to easily time 3 Hours Fullscreen and free!
  • 3H Shop - Making everyone’s daily easier. – 3H CORPORATION
    Foodservices for Business, Restaurants, Catering, Home More Bulk savings and reliable shipping — Handy, Healthy, High-Quality
  • 3 Hour Timer | Stopwatch App
    Need a timer for your next project or activity? Look no further! Our 3 Hour Timer is perfect for keeping track of time with precision and ease The 3 Hour Timer is a digital tool that measures a span of three hours precisely
  • RADIATION SAFETY DATA – 3H
    Tritium (3H) is widely used in life sciences research A wide range of tritium-labeled compounds are available, at moderate specific activity, and forms with uniform labeling or selective parts of the molecule labeled are often available The moderate half-life permits the use of chemically stable isotope batches over a period of years
  • Backgrounder on Tritium EXIT Signs | Nuclear Regulatory Commission - NRC
    The sign should also have a permanent warning label that mentions tritium, 3H or H-3; displays the three-bladed radiation warning symbol; and states “Caution-Radioactive Materials ”
  • Tritium | Radioactive, Hydrogen, Decay | Britannica
    Tritium, (T, or 3H), the isotope of hydrogen with atomic weight of approximately 3 Its nucleus, consisting of one proton and two neutrons, has triple the mass of the nucleus of ordinary hydrogen
  • Basics of 3H 3He dating - Lamont–Doherty Earth Observatory
    Tritium (3 H or T) is the radioactive isotope of hydrogen that decays with a half life of 12 43 years to its stable daughter 3 He Tritium is produced naturally in the upper atmosphere by interaction of nitrogen, and, to a lesser extent, oxygen with cosmic rays After oxidation to HTO, it takes part in the natural water cycle





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