Based on experiments, we analyzed and discussed the principles of Urea-N transformation and transport under drip-irrigation in the greenhouse.
在试验的基础上，分析讨论了温室滴灌条件下尿素氮运移分布和转化规律。
Besides, we discussed the effects of different fertilization period on the principles of Urea-N transformation and transport under drip-irrigation in this paper.
并初步讨论了滴灌条件下不同灌溉施肥时段对尿素转化运移规律的影响。
Soil column method was used to study the characteristics of the movement, transformation, and leach of urea-N in soil added by different ways of the fertigation.
采用室内土柱模拟试验方法，研究了不同灌溉施肥方式下尿素态氮在土壤中的迁移、淋溶和转化特征。
By the method of linear transformation, the solution forms of vector wave equation in spherical coordinates, l, m and n, are transformed to the many other kinds of forms.
利用线性变换的方法，将球坐标下矢量波动方程解的形式l、M和N变换为其他多种形式。
Study on transfer and transformation of NH3-N from leachate in soil and groundwater was carried out by simulated experiment, influence extent and law of leachate pollution on soil were achieved.
通过模拟实验对渗滤液中的氨氮在土壤和地下水中的迁移转化进行了研究，从而得出渗滤液对土壤的影响程度和规律。
Exact N-soliton trains in a spin chain driven by a time-dependent magnetic field are obtained by means of an inverse scattering transformation.
用逆散射方法，得到了含时外磁场驱动下一维自旋链的N孤子解。
Exact N-soliton trains in a spin chain driven by a time-dependent magnetic field are obtained by means of an inverse scattering transformation.
用逆散射方法，得到了含时外磁场驱动下一维自旋链的N孤子解。
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