柯林斯詞典weak interaction (also weak force) 1. interactionN an interaction between elementary particles that is responsible for certain decay processes, operates at distances less than about 10–15 metres, and is 1012 times weaker than the strong interaction. The weak interaction and electromagnetic interactions are now described by the unifying electroweak theory 弱相互作用 (Also called weak nuclear interaction, weak nuclear force)[physics] →see interact ,electroweak interaction 返回 weak force劍橋詞典a reaction between particles that causes some radioactive substances to break down （引起放射性衰變的）弱力，弱核力，弱相互作用 返回 weak force