叶片结构和功能 Leaf structure and function
叶结和
Ye Jie and
以上为机器翻译结果，长、整句建议使用 人工翻译 。
美洲一种结红果的山楂，叶和茎密被短绒毛。
American red-fruited hawthorn with stems and leaves densely covered with short woolly hairs.
youdao
氮肥和钾肥提高结球甘蓝养分元素的吸收数量，促进边叶钙和镁向叶球转移。
Nitrogen and potassium fertilizer enhanced the nutrient uptakes, and the translocation of ca and Mg from side leaves to heads.
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