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...
文章在AC8C号材料基础上,选用韩国Anycasting公司开发研制的新型模拟系统模拟整个充型过程,通过对各项参数尤其是的浇注温度、模具温度、入射速度的确定,结合数据分析,并考虑到充型时间、凝固开始时间和凝固停止时间等影响因素,及气孔、紊流、模具腐蚀等生产缺陷问题,选择出优化方案,使实际生产中摇盘的性能和成品率有一定...
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...