軸線 [轴线]

Jyutping zuk6 sin3
Pinyin zhóu xiàn

Definitions (CC-CEDICT)
  1. central axis (line)
Definitions (Wiktionary)
  1. noun
    spool
  2. noun
    spool thread
  3. noun
    axis; axle
  4. noun
    reel for thread
Definitions (Kaifangcidian)
  1. （沒有對應漢語詞彙）