英语语法分析

The ultrastructural changes in leaf cells of submerged maize Zea mays l.

叶片细胞超微结构的变化进行连续观察。

Effect of different stress on roots activity and nitrate reductase activity in Zea mays L.

不同逆境对玉米幼苗根系活力及硝酸还原酶活性的影响。

Under P-stress, mobilization and utilization of structural K in gneiss and feldspar by maize Zea mays l.

玉米、油菜和黑麦草等植物根系可直接活化和利用片麻岩和钾长石中的矿物结构钾。