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Some thick-film resistors base on Bi2Ru2O7 were evaluated. The resistors are made by screen-printing thick film paste on Al2O3 substrates. After printing and drying, the thick-film pastes are fired in a belt furnace. We discuss the conduction mechanism and a strain sensitive mathematical model of thick-film resistors through calculating and taking the measurements of the gauge factor (GF). We also interpreted the phenomenon through the strain sensitive model, and explained the strain sensitive phenomenon, such as the GF mounts up with the barrier height's augmention.