Optical Level Switches 水平光控开关
optical-level 光杠杆
Optical level control method 发明名称
optical level detection method 光学偏转法检测
optical tooling level 光学工具水准仪 ; 光学水平仪
optical carrier level n 光载波第N级 ; 光载体等级
optical eye level finder 光学直视水平瞄准器
To measure the difference in elevation between poles, surveyors used an optical level—a telescope on a level base—placed halfway between the poles.
为了测量两极之间的高程差，测量员在两极中间的一个水平基座上使用了光学水准望远镜。
The traditional method in Labortory is optical level and suspension level, but the two methods can cause larger error.
而传统的实验室方法是＂光杠杆法＂和＂悬架水准法＂，这两种方法的实验结果误差较大。
Based on the conventional paraffin sectioning method, observation was done at the optical level on the dynamics of starch during the ovular development in barley.
运用常规石蜡制片法，在光学水平观察了淀粉在大麦胚珠发育中的消长动态。
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