So, remember, when we set up the divergence theorem, we need the normal vectors to point out of our region, which means that on the top surface, n But, on the bottom face, we want n pointing down.
当我们建立散度定理时，我们要使法向量指向区域外，即在上表面时，要指向上方。，we，want，n，pointing，up。,但是，在下表面，要使n指向下面。
An electric network for of clear layer, simple structure, standard connection, rational redundancy and appropriate advance technology is set up, "N-1" standard of city network is realized.
建立层次清晰、结构简单、接线规范、冗余度合理、技术适度超前的电网框架，实现城市电网“N - 1”准则。
Mathematic models between yield and N fertilizer and plant density for two peanut variety types were set up by using quadratic saturation D-optimization design under single-seed planting.
采用二次饱和D—最优设计建立了精播条件下不同类型花生品种N肥用量和密度与产量的数学模型，探讨肥料与密度的产量效应及优化配置。
The mathematics equations of dynamic fertilization mode were set up to determine the rational N dosage and proportion of additional fertilizer for different production goals.
得出了不同目标产量时的最佳氮肥用量与追施比例和对应于氮肥不同用量的最佳追施比例及理论产量的动态施肥模式的数学方程。
The diagnosis parameter setting circuit is used to set up collection times N, failure warning valve value and rotary shaft gyro frequency of the machinery needing test.
诊断参数设定电路用于设置采集次数N、故障报警阀值和待测机械的旋转轴的旋转频率；
The diagnosis parameter setting circuit is used to set up collection times N, failure warning valve value and rotary shaft gyro frequency of the machinery needing test.
诊断参数设定电路用于设置采集次数N、故障报警阀值和待测机械的旋转轴的旋转频率；
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