1. | parallel plate 飞达光学网... ... parallel pencil of rays 平行光束 parallel plate 平晶,平行片 parallel polarized wave 平行偏振波 ... www.33tt.com|基于16个网页 |
2. | Optical Flats Calibration item accredited by CNAS ... 自准直仪 Autocollimator 平晶 Optical Flats 研磨平尺 Milling Straight Edges ... english.simt.com.cn|基于8个网页 |