| 摘要 |
Multiple oxides of the general formula (L1-x Mx) (Q1-y Ry)O3, in which L is an element of atomic number 57 - 71, M is an element of Ca, Sr or Ba, Q and R are mutually different elements of atomic number 21 - 30 or Zr, 0 </= x < 1 and 0 < y < 1, have excellent electron-conductivity and thermal stability.
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