词条	Dielectric constants of some materials
释义	Dielectric constants of some materials Table Dielectric constants of some materials (at room temperature) material dielectric constant vacuum 1.0 air 1.0006 oil 2.2 polyethylene 2.26 beeswax 2.8 fused quartz 3.78 water 80 calcium titanate 168 barium titanate 1,250 See as table:
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