词族 · pion
词形变化
英语词源
- pion (n.)
- 1951, from Greek letter pi + -on.
权威例句
- 1. Two photons are created in the decay of the neutral pion.
- 双光子是在中性兀介子衰变中产生的.
- 2. During its brief existence, the pion carries momentum from one nucleon to the other.
- 在它短暂的存在期间内, 它将动量从一个核子带到另一个核子.