Now there is a electrodeless mercury lamp, and can be instantaneous switch, and UV exhibiting.
现已出现一种无极汞灯, 可以瞬时开关, 且寿命长、UV功效大.
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The main material substances synthetic resin, synthetic rubber and natural bidentata and electrodeless compounds.
主体材料的物质有合成树脂 、 合成橡胶、天然高分子物质以及无极化合物.
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