rock plate with hole 带孔岩板
thin plate with hole 开孔薄板
rectangular plate with hole 矩形开孔板
plate bending with hole 含孔薄板弯曲问题
As an example, we calculate the conducting plate with a circular hole, and compare the calculating results with those of analytical method.
对于一个中间有圆孔的导体板进行了计算举例，并与解析法的分析结果进行了比较。
Combined practice, the technology difficulties of sheet forgings with inner hole were introduced, for which the optimized design of dies for punching and cutting for top-plate forging was put forward.
结合实际，介绍了带内孔的薄板锻件的工艺难点，并就此工艺难点的解决介绍了锻件切边、冲孔模具的优化设计。
He bought a thin metal plate with a hole at the centre.
他买了块中心有孔的薄金属板。
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