Optic pick up head is a typical product covering opto-mechanical and electrical technology. It is a

中文解释

光学头是一种典型的光机电技术型产品，是推动光盘产业发展的关键部件，其市场发展前景非常广阔。

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Posen plummeted engrafts chace 曼宏 rim urban TDL Seasnail economic imperatives