Inanother embodiment, the at least one metal compound is a metal oxidecompound.
在另一实施方案中，至少一种金属化合物是金属氧化物化合物。
2
Mainly researched was the effect on properties of PMN-PNN-PZT piezoelectric ceramics for different synthesizing process named precursor synthesis and oxidecompound synthesis.
It can be divided into four methods to prepare manganic manganous oxide from the raw stuff: electrolytic product of manganese, manganous salt, manganese oxidecompound and manganese carbonate.