This is the process of 'marrying' the two opposing mould halves together to prevent the plastic material escaping between the two surfaces when the material is injected into the impression.

此工艺是将两个相对的上下半模紧密配合在一起，以使材料注射到模腔里时，两半模相配合表面之间不会有塑料溢出。

youdao

The opposing magnetic intensity that must be applied to a magnetized material to remove the residual magnetism.

作用于磁化材料以去除剩磁的反向磁通强度。

youdao

His two opposing ideas involved seeking happiness from material things, and knowing that material things only brought unhappiness.

VOA: special.2010.11.21