  In this paper, we are concerned with a time-dependent transmission problem
for a thermo-piezoelectric elastic body immersed in a compressible fluid. It is
shown that the problem can be treated by the boundary-field equation method,
provided an appropriate scaling factor is employed. As usual, based on
estimates for solutions in the Laplace-transformed domain, we may obtain
properties of corresponding solutions in the time-domain without having to
perform the inversion of the Laplace-domain solutions.
