static-pressure gradient

The inversion methods of ground temperature field and ground temperature gradient field based on three-dimensional static heat conduction theory are presented with the influence from those minor factors such as heat convection and geology tectonics and so on.

研究了基于三维稳态热传导理论并忽略对流换热及地质构造等次要因素影响的地温场与地温梯度场的反演方法。

The quasi-static fracture behavior of functionally graded materials ( FGMs) was studied using coherent gradient sensing ( CGS) interference measurements.

为了解梯度结构对功能梯度材料断裂性能的影响，利用相干梯度敏感（CGS）干涉测量技术对功能梯度材料的静态断裂力学性能进行了实验研究。

The thickness of the transducer membrane is in micron scale, so we should use theory of strain gradient to evaluate the static deformation.

换能器厚度达到了微米级别，在研究薄膜应变时要应用应变梯度理论。