保護膜 [－护－]

Jyutping bou2 wu6 mou4
Pinyin bǎo hù mò

Definitions (Wiktionary)
  1. noun
    protective film
Examples (粵典–words.hk)
  1. Cantonese
    形成保护膜
    形成保護膜
    jing4 sing4 bou2 wu6 mok2
    • to form a protective layer