質量保證 (zat1 loeng6 bou2 zing3) — quality assurance in Cantonese
zatˉ¹質loengˍ₆量bouˊ²保zing˗₃證简 质量保证
Mandarin Pinyin: zhi4 liang2 bao3 zheng4
Meaning of 質量保證
nounquality assurance
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