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ㄒㄧ一种非金属元素,符号 Se,导电能力随光的照射强度的增减而改变。硒可用来制半导体晶体管和光电管等,又供玻璃等着色用 selenium, a nonmetallic element, whose electric conductivity changes with the intensity of light, used esp. in semiconductor and light-sensitive electrical instruments and as a colouring material for glass; symbol: Se
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