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Friction transmission rotation driving device
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Stable tracking method of television gate
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Hybrid overlying gray-level control display drive circuit
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Single-phase white-emitting phosphor based on near ultraviolet excitation and preparation method thereof
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High-precision 2-D rotary regulation mechanism
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Grating diffraction efficiency tester with CCD multicolor machine
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Apparatus and method for automatically detecting and rejecting camera target surface stain spots
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Trailer apparatus for large-sized telescope
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Minitype absolute encoder with sixteen bit output
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Method for improving vacuum ultraviolet scaling light source stability
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Rapid triangle star map recognition method
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Method for positioning relative position of off-axis aspherical mirror and zero compensation machine by four measuring bars
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Portable non-track type non-image forming solar condensing device
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Preparation method of green LED activated by dye
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Method for dynamically measuring guide rail linearity
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Photoelectric conversion simulating device of TDI CCD apparatus and method thereof
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Dynamic goal simulator
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Convex concave mould for manufacturing chip microfluid dynamic mixer mixing pool
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