鎖邊 [锁边]

Jyutping so2 bin1
Pinyin suǒ biān

Definitions (Wiktionary)
  1. verb
    to lockstitch a border
    (syn.) 钑骨, 鈒骨
Definitions (Kaifangcidian)
  1. （沒有對應漢語詞彙）