墨線盒子 [－线－－]

Jyutping mak6 sin3 hap6 zi2
Pinyin mò xiàn hé zi

Definitions (Wiktionary)
  1. noun
    carpenter's ink marker (inked cord stretched tight then lowered onto timber)
    (syn.) 墨斗子線兒, 墨斗斗, 墨斗子, 墨斗斗兒, 繩墨, 墨斗兒, 墨線盒子, 墨斗