球面镜片

The 4-axis grinding machine tool and the grinding process for machining non-sphere glass lens are both very professional,resulting in very hard to control the lens precision.

非球面玻璃镜片四轴磨削加工的加工硬件和加工工艺都具有很强的专业性，因而产品的加工精度控制问题显得十分突出。

Singer Leona Lewis and former Led Zeppelin guitarist Jimmy Page emerged as the bus transformed into a grass-covered carnival float, and the pair combined for a rendition of "Whole Lotta Love".

歌手leona刘易斯和前率领的飞艇的吉他手吉米页出现巴士转化为基层所涵盖的嘉年华花车，和一双合并为一移交&整个lotta爱&。

This is Kate, and that's Erin.

这是凯特，那个是爱朗。