The precision of the isotope abundances and atomic mass is limited through variations.

The time machine went through several variations during production of the first film, Back to the Future.

The rule went through several variations until it was finally abolished in 1965.

Training in the visual arts has generally been through variations of the apprentice and workshop system.

Ms. Hawn has run through variations on this role too many times.

And economics, through variations in the access price, can allocate the scarce spectrum most efficiently.

The fantasia continues through several variations encompassing the full capabilities of the band.

The plant has strong roots and can survive through wide variations of the water level, slow currents and waves.

Therefore, ordinary quasars take centuries to go through variations a microquasar experiences in one day.

One method may be through variations in government expenditure and taxation since these flows are under the direct control of the authorities.