  We fit the spectral energy distributions (SEDs) of a GeV-TeV FSRQ sample with
the leptonic model. Their gamma_min of the relativistic electron distributions,
which significantly affect the estimates of the jet properties, are
constrained, with a typical value of 48. Their jet power, magnetized parameter,
radiation efficiency, and jet production/radiation rates per central black hole
(BH) mass are derived and compared to that of BL Lacs. We show that he FSRQ
jets may be dominated by the Poynting flux and have a high radiation
efficiency, whereas the BL Lac jets are likely dominated by particles and have
a lower radiation efficiency than FSRQs. Being different from BL Lacs, the jet
powers of FSRQs are proportional to their central BH masses. The jet production
and radiation rates of the FSRQs distribute in narrow ranges and are correlated
with each other, whereas no similar feature is found for the BL Lacs. We also
show that the jet power is correlated with the cavity kinetic power, and the
magnetic field energy in the jets may provide the cavity kinetic energy of
FSRQs and the kinetic energy of cold protons in the jets may be crucial for
cavity kinetic energy of BL Lacs. We suggest that the dominating formation
mechanism of FSRQ jets may be the BZ process, but BL Lac jets may be produced
via the BP and/or BZ processes, depending on the structures and accretion rates
of accretion disks.
