单词	retroreflector
释义	retroreflector /ˈrɛtrəʊrɪˌflɛktə / noun A device which reflects light back along the incident path, irrespective of the angle of incidence.After collimation, the central part of the measurement beam travels to the target retroreflector through an annular mirror that returns the outer annulus of the beam, which acts as the reference.... The corner-cube retroreflectors can be molded in the mouse, or micro-corner-cube retroreflective sheeting can be die cut and attached. During the 4 ½ hour spacewalk, ISS commander Gennady Padalka and ISS Flight Engineer Mike Fincke removed old laser retroreflectors and installed new ones together with a videometer target assembly. Derivatives retroreflective adjective ... A digital camera takes a series of photos of the retroreflective targets from different angles and different rotations, with an additional photograph taken from the digital video camera installed in the vehicle. Self-illuminated pavement markers offer certain advantages over conventional retroreflective markers, the most obvious being their visibility. Reflexite makes retroreflective materials for use in work-zone signing and on garments, drums, cones, and other equipment.
随便看	storied storier storiette storify storiological storiologist storiology stork storksbill storm storm and stress storm beach stormbound storm centre storm cloud stormcock storm collar storm cone storm cuff storm door storm drain stormer storm flap storm glass stormily

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