The invention relates to a mechanical zoom lens device which comprises a first cylinder (103) provided with a zoom curve groove (117) and a compensating curve groove (116), a second cylinder (104) provided with a straight line groove (115), a first circular ring (105) provided with a first keyhole (.....
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The invention is a fast removable platform, comprising: supporting framework unit having a pair of supporting frameworks and a pair of inner wall fixing components and comprising inner beam, outer beam, hanging beam fixed between the inner and outer beams, and install piece arranged on the outer bea.....
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A method for testing a sample of the infrared fabric attributes, the apparatus comprising: a frame, including setting on both sides of the two slide rods and provided at the lower portion of a base; bionic skin model, which is provided in the frame base; infrared radiation source disposed on the top.....
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The invention provides an electrical stimulation method as well as relative device and system thereof. The system comprises an output module and a stimulation module, wherein the output module obtains low-frequency and long-term electrical stimulation parameters and transmits the electrical stimulat.....
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