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pion    音标拼音: [p'ɑɪ,ɑn]
n. k介子

k介子

pion
n 1: a meson involved in holding the nucleus together; produced
as the result of high-energy particle collision [synonym:
{pion}, {pi-meson}]

Meson \Mes"on\, n. [NL., fr. Gr. me`son middle, neut. of me`sos,
a., middle.]
1. (Anat.) The mesial plane dividing the body of an animal
into similar right and left halves. The line in which it
meets the dorsal surface has been called the dorsimeson,
and the corresponding ventral edge the ventrimeson. --B.
G. Wilder.
[1913 Webster]

2. (Physics) An elementary particle made up of two quarks; a
hadron having a baryon number of zero; any hadron other
than a baryon. Mesons are bosons with integral values of
spin, having a mass intermediate between those of the
electron and a nucleon; they may have positive or negative
charges, or may be neutral. Mesons are of three types: the
{pion} ([pi]-meson), {kaon} (K-mesons), and
{[eta]-mesons}.
[PJC]

{mu meson} (Physics) the former name for the {muon}, a
particle which is not a true meson[2]. The term is no
longer used in technical literature, except historically.
[PJC]


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  • Pion - Wikipedia
    The pion is one of the particles that mediate the residual strong interaction between a pair of nucleons This interaction is attractive: it pulls the nucleons together
  • Pion is the Leader in Next-Generation Pharma Drug Development
    Injectable Formulation Development Learn how injectable formulation development improves drug stability, bioavailability, and delivery using in vitro tools and analytical systems from Pion
  • 2S7 Pion - Wikipedia
    The 2S7 carries a crew of fourteen and eight rounds of ammunition; seven crewmembers and four rounds are carried by the Pion, with the remaining crew and rounds in an auxiliary vehicle
  • PION Definition Meaning - Merriam-Webster
    The meaning of PION is a meson that is a combination of up and down quarks and antiquarks, that may be positive, negative, or neutral, and that has a mass about 270 times that of the electron
  • PION STUDIO
    Photography services for hotels, designers and magazines
  • Pion | Own your growth
    Pion helps businesses instantly verify their customers to increase conversion rates and build brand affinity with these valuable customer groups We have a number of verification methods based on the user, the consumer group and the country
  • pion webrtc: Pure Go implementation of the WebRTC API - GitHub
    Pure Go implementation of the WebRTC API Contribute to pion webrtc development by creating an account on GitHub
  • Pion - GitHub
    The Open Source, Cross Platform Stack for Real-time Media and Data Communication - Pion
  • Pion Power Flex-AC EV Charger | Earn $0. 10 kWh Reward with GreenMiles
    Pion Power Flex-AC Open Box EV Charger - Fast Level 2 charging up to 9 6kW, Tesla J1772 compatible Earn $0 10 kWh with GreenMiles
  • About Us - We are Pion
    Pion serves drug food researchers, formulators, and manufacturers globally where data quality, accuracy and reproducibility are valued components of a product development process





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