平均速度 [－－－－]

Jyutping ping4 gwan1 cuk1 dou6
Pinyin píng jūn sù dù

Definitions (CC-CANTO)
  1. Average speed
Definitions (Wiktionary)
  1. noun
    average speed; mean velocity
Definitions (Kaifangcidian)
  1. （沒有對應漢語詞彙）