给出两种用于地球观测装置的窄带透射滤光片实例。
Two examples of narrowband transmission filters dedicated to Earth observation are described.
简单介绍了被动型氢钟的量子系统，阐述了波谱信号观测装置的设计。
The quantum system of the passive hydrogen maser is introduced briefly and a design of the spectrum observing device is expounded.
一些报告认为ASN-206型上的光电观测组件来源于从以色列塔迪兰（Tadiran）有限公司购买的观测装置。
Some reports indicated that the electro-optical observation package on the ASN-206 was derived from an observation device purchased from Israel's Tadiran Ltd.
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