Light pickup lens, light emitting element assembly, surface light source device, and color liquid crystal display unit assembly.
光拾取透镜，发光元件，面光源装置和彩色液晶显示单元。
The random profile graph experiment has demonstrated the waveform measured by the piezoelectric pickup that can really reproduce the profile of roughness surface.
随机轮廓图形实验，验证了压电传感器测得的波形能真实地复现表面特征的实际轮廓。
This sensor is composed by the CCD pickup camera and the laser, it is mainly used in surveying the road surface smoothness.
该传感器由CCD摄像机和激光器组成，主要用于测量路面的平整度。
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