| http://www.w3.org/ns/prov#value | - ZnO serves to increase the Q factor of the high dielectric-constant material and yields ZnAl.sub.2 O.sub.4, ZnTiO.sub.3, Zn.sub.2 TiO.sub.4, Zn.sub.2 Ti.sub.3 O.sub.8 and other crystals having a high Q factor. If the content of ZnO exceeds about
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