check criterion of upper limit velocity
lifting upper limit of mining
the upper limit of charging voltage
the upper limit of creation time
the upper limit of heat tolerance
the upper limit of nuclear coordinates
upper limit of flammability
upper limit of integral
upper limit of integration
upper limit of low-permeability reservoirs
upper limit of permafrost
upper limit of seismic grade
upper limit of stability
upper limit of temperature difference
upper limit of the nuclear electric change
upper limit of ultimate strength