rear element造句

• The most difficult thing with the j12 is protecting the large mushroomlike rear element
  最困难的事，与纺纱，保护了大蕈后方的元素。
• It's well known that minor scratches on the front of a lens have minimal affect on the picture quality; however scratches on the rear element, particularly one that comes as close to the focal plane as this one, are generally obvious on the final image
  这是人所共知的轻微抓伤的前面，镜头有极小的影响画面质量;但被抓伤后方元素，尤其是一个正值接近该焦平面由于这一个，一般都是明显的对最终图像。