凹板

A newly developed approach, in which sheet metal forming and plastics injection molding are integrated, was used to manufacture complex components combined with aluminum sheet and polypropylene with the mold of non-flat bottom via plastics injection molding machine.

摘 要：在注塑机上利用非平底凹模制备了形状较复杂的铝板/聚丙烯复合结构件，实现了将金属板料成形、塑料注射成形融为一体的复合成形的新工艺。

It does not apply thin shell analysis ,but also apply middle-thick sheet analysis ,and it is easy to achieve transition with 3-dimension solid element .

对于复杂形状的中厚板件拉深，在凹模圆角处单元的弯曲效应明显，不能满足薄壳假设的基本要求。

The chairs were also damaged many of them severely; and deep indentations deformed the panels of the walls.

椅子也都残缺，有好几把坏得很厉害。深深的凹痕把墙上的嵌板搞得很难看。

On the other hand, the more important thing is because the urban housing is a kind of heterogeneity products.

另一方面，更重要的是由于城市住房是一种异质性产品。

Climate histogram is the fall that collects place measure calm value, cent serves as cross axle for a few equal interval, the area that the frequency that the value appears according to place is accumulated and becomes will be determined inside each interval, discharge the graph that rise with post, also be called histogram.

气候直方图是将所收集的降水量测定值，分为几个相等的区间作为横轴，并将各区间内所测定值依所出现的次数累积而成的面积，用柱子排起来的图形，也叫做柱状图。