改进的改良半叶法测定光合强度，具有易操作，易掌握，且测定数据更准确的特点。
It is easy to operate and master and more accurate to determine the data when the improved half leaf method is improved and used to determine photosynthetic intensity.
用改进半叶法测定鸭梨不同部位叶片和不同枝类叶片不同时期的光合速率。
The photosynthetic rate of Ya pear leaves on different branches and location was tested using improved half leaf method at different developing stages.
用改进半叶法测定鸭梨不同部位叶片和不同枝类叶片不同时期的光合速率。
The photosynthetic rate of Ya pear leaves on different branches and location was tested using improved half leaf method at different developing stages.
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