（一）原值不超过500万元的单项长期资产，对应的进项税额可以全额从销项税额中抵扣；
In our case, our primary mirror has a diameter of 150mm and considering if the average human eye lens has a diameter of 6mm in darkness, how much more light will the mirror gather than the human eye?
。业内人士推荐新收录的资料作为进阶阅读
Photograph: Ryan Waniata
We were lucky enough to have access to a really big wooden router at our lab's facility. To make our life easier and pace up the process, we decided to utilize the capability of the wooden router for contour cuts of our desired profiles for telescope components.