concrete columns confined with FRP

3D constant speed coordinate turn model

1st order rate constant

1H-13C one-band coupling constant

13C excretion rate constant

’constant ratio’ structure

(inhibiting) kinetic constant

constant speed with constant frequency

variable speed with constant frequency

constant frequency with variable speed

water supplying with constant voltage

water supplying with constant pressure

water supply with constant pressure

various displacement pump with constant pressure control

variable displacement pump with total constant power

universal joint with a constant velocity

tuning with constant distortion

the load with constant torque

the load with constant power