This language is rendered by the client's browser or other viewing device.
此语言由客户端的浏览器或其他查看设备呈现。
Objective: To develop a new type of stereopsis test charts and relevant graph viewing device.
目的：研制一种新型的立体视觉检查图卡及相应观片装置。
The device includes a main body, a viewing window, and a link gear.
一种具有收纳式观景窗机构的装置、收纳式观景窗机构及其使用方法。
The device includes a main body, a viewing window, and a link gear.
一种具有收纳式观景窗机构的装置、收纳式观景窗机构及其使用方法。
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