... stimulation and propitiation, efficacy of vapor)b,Fluidity(sparge, hydraulic pressure)c,Biochemical aspects(solvency, osmosis, diffusivity, emulsification, lotion)d ... tender skin machine, figure machine, air pressure machine, emaciating blanket/coat, electrotherapeutical equipment, skin-shoveling machine, fat-shoving machine, accelerating light, skin-testing instrument, spraying machine, ultrasonic ...