柑橘气孔性状及开张度日变化规律研究 3. Change of Stomatal Density and Opening Degree of Poa pratensis L. Treatment with S_(3307) S_(3307)处理对草地早熟禾叶片气孔密度和开度的影响 4. Open the air hole;the fire is dying down. 把气孔打开,火要熄了。 5. gas-filled porosity 天然气充满的...
气孔开度 1. The visible symptoms damages of artificial acid rain and its effect on the content of chlorophyll, stomatal aperture, POD activity and membrane permeability of leaf in cowpea ( Vigna sinensis Savi) were studied with a field artificial acid rain system . 采用田间酸雨喷淋系统,研究了...