focusing-servo 调焦伺服机构
auto-focusing servo 自聚焦伺服
automatic focusing servo 自动聚焦伺服
focusing and tracking servo 聚焦和循道伺服
Linear region automatic-search beforehand is an importantfunction of focusing servo system for various kinds of optical disk system .
线性区自动预搜索是各类光盘系统中聚焦伺服系统需要完成的重要功能。
参考来源 - 准线性区光盘聚焦自动预搜索机制的研究 An Investigation on Automatic Search Mechanism in Quasi·2,447,543篇论文数据，部分数据来源于NoteExpress
To improve the precision of the laser direct writing device, researches have been done for the focusing servo system.
为了提高在激光直写设备中光刻系统的写入精度，对光探头调焦系统进行了研究。
It is available to improve optical storage density by using short wavelength laser, but a harder focusing servo system is need.
采用短波长激光光源是实现高密度光存储的一种有效途径，但是对聚焦伺服系统提出了更高的要求。
But to use SIL recording, the problems of the focusing servo and the dynamically flying height control of the SIL must be solved.
但是，固体浸没透镜光存储系统必须解决精密聚焦伺服问题和动态飞行高度控制问题。
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