它由外层密封恒温外套、中间层镜筒、内层为分隔固定光学透镜元件的透镜框组件组成。
It consists of outer layer sealing constant temperature jacket, middle layer objective sleeve and inner layer as lens frame to partition and fix optical lens elements.
店面之前是海洋光学零售店，建筑师移除了所有存在的固定装置和设备，此前的店是海洋主题。
The shopfront has previously housed a Marine optics retailer, and the architects removed all of the existing fixtures and fittings, which were nautically themed.
差分光学吸收光谱法(DOAS)应用于固定污染源烟气排放监测时，烟气中污染气体so2浓度较高将产生非线性吸收问题。
Nonlinear absorption occurs when the differential optical absorption spectroscopy (DOAS) is used to monitor the flue gas with high SO2 concentration from fixed pollution source.
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