meristematic tissue的用法和樣例：
例句
- It may develop by thickening of the secondary walls of parenchyma cells, or it may arise directly from meristematic cells.
它們可能由薄壁組織的細胞壁次生加厚而成，也可能直接來(lái)自于分生組織細胞。 - It is constantly replaced by newly formed cells as the older tissue is sloughed off with growth of the root through the soil.
隨著(zhù)根尖的生長(cháng)，根冠外層的薄壁細胞與土壤顆粒磨擦，不斷脫落，死亡，由其內的分生組織細胞不斷分裂，補充到根冠，使根冠保持一定的厚度。
