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1·As to metal halide torch with gallium iodide is special rise 403nm and 417nm wave crest, and the highest wave crest 417nm has conspicuousness and good effect to exposal Diazo material.

至于钾掺合卤素灯，特别增强了403nm及417nm的波峰，其最高的417 nm波峰对于diazo材料的曝光有十分显着及良好的作用。