该法适用于区域内点、围绕边界的尖角点、边界或内部同心圆弧及同心圆四种特殊区域的网格改进，为实际工程结构应力梯度突变或变化较大处网格细化提供了十分方便的手段。
The scheme adapts to refine the meshes of special regions, such as interior points, around corner points, arcs and circles, which are usually failure regions of parts because of great stress gradient.
温度梯度凝胶电泳(TGGE)是一种用于检测核酸序列变异和点突变的电泳方法。
Temperature gradient gel electrophoresis (TGGE) is a new and powerful electrophoresis method for separation of nucleic acids (DNA and RNA) and analysis of sequence variations.
铱与碳材料冶金结合，其成分从渗入层到表面层梯度过渡，没有成分和力学性能的突变。
Iridium and carbon material has combined, and the ingredient forms gradient transition from infiltrated layer to surface layer and has no catastrophe of ingredient and mechanical property.
根据纹理位于图像中灰度突变处的特点，采用典型梯度算法，对目标图像进行两次梯度锐化。
According to the feature that the surface textures locate in the sudden change areas of image grey value, the double grade sharpening was performed for the image using the typical grad algorithm.
根据纹理位于图像中灰度突变处的特点，采用典型梯度算法，对目标图像进行两次梯度锐化。
According to the feature that the surface textures locate in the sudden change areas of image grey value, the double grade sharpening was performed for the image using the typical grad algorithm.
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