pressing lens blank

例句：

1. 1. The camera is designed topress the lens blank into place.
   这台相机设计用来将透镜片压紧到位。
2. 2.The lens was pressed down with a hammerto remove it from its holder.
   用锤子把透镜压下，从它的支架上取下来。
3. 3. The lens blank is made ofglass and needs to be precisely alignedbefore assembly.
   透镜片是由玻璃制成的，在组装前需要精确对齐。