degree of excellence of a product or work; equivalent to 品质 pǐn​zhì in Taiwan usage

to inspect; to examine; to look over something (such as a physical exam, review of work, or a written self-criticism) to ensure quality, safety, or accuracy

quality; character; the fundamental nature of something or the standard of excellence of a product or work

(bound form) to check; to examine; to inspect; to search; to look up