介子任一种具有较强相互作用力的亚原子粒子群，由一夸克与一反夸克构成，并具有通常介于轻子和。

Any of a family of subatomic particles that participate in strong interactions, are composed of a quark and an antiquark, and have masses generally intermediate between leptons and baryons.

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介子任一种具有较强相互作用力的亚原子粒子群，由一夸克与一反夸克构成，并具有通常介于轻子和。

Any of a family of subatomic particles that participate in strong interactions, are composed of a quark and an antiquark, and have masses generally intermediate between leptons and baryons.

youdao