Despite overcoming enormoustechnical challenges, the malfunction of a measuring device usedduring the polishing of the primary mirror rendered every imageblurred.
尽管战胜了巨大的技术挑战，但是测量仪器在使用磨光其主要镜片过程中产生的故障使得每张图像都模糊不清。
3
The secondary mirror must be adapted during the process of grinding and polishing to this other form .