defect (n)
/ˈdiː.fekt/
sai sót, khuyết điểm
a fault in something or in the way it has been made that means that it is not perfect
machinery (n)
/məˈʃi·nər·i/
máy móc; thiết bị
a group of machines, or the movable parts of a machine
label (n)
/ˈleɪ·bəl/
nhãn
a piece of paper, etc. that is attached to something and that gives information about it
quality control (n)
/ˈkwɑl·ɪ·t̬i kənˈtroʊl/
sự kiểm soát chất lượng
the regular tests that are done in a factory to make sure that its products are good enough to sell
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