trim loss problem

Developing Problem Situation Problem Posing

Developing Problem Situations Problem Posing

Fermi-Pasta-Ulam problem， FPU problem

linear programming problem LP problem

servo problem servomechanism-type problem

servomechanism-type problem servo problem

affinity law for impeller trim

aileron trim wheel

airplane trim

alteration of trim

alternate lateral trim switch

alternate longitudinal trim switch

aluminium trim

amount of trim

angle of trim

athwartships trim list

auto inner trim

auto interior trim