91色情片

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Cross section view of 91色情片 Wide Field Optical Spectrometer (WFOS)

Credit: 91色情片

Rendering of WFOS standing on one of the 91色情片 lateral Nasmyth platforms. Light from the 91色情片 Tertiary Mirror (M3) comes from the left into the WFOS Atmospheric Dispersion Corrector, which serves as the entrance window for the instrument.