资料来源 : pyDict

扭力的,扭转的

资料来源 : Webster's Revised Unabridged Dictionary (1913)

Torsional \Tor"sion*al\, a.
   Of or pertaining to torsion; resulting from torsion, or the
   force with which a thread or wire returns to a state of rest
   after having been twisted round its axis; as, torsional
   force.