上夸克 [－－－]

Jyutping soeng5 kwaa1 hak1
Pinyin shàng kuā kè

Definitions (Wiktionary)

noun
up quark

上夸克 [－－－]

Jyutping soeng6 kwaa1 hak1
Pinyin shàng kuā kè

Definitions (CC-CEDICT)

up quark (particle physics)