Report - TiÕt 17 - VLOS · Web view- Líp cutin phñ bªn ngoµi l¸ cã t¸c dông chèng mÊt n íc, biÓu b× l¸ chøa nhiÒu khÝ khæng ®Ó trao ®æi khÝ vµ tho¸t n íc - Ph¸t

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