> as lemmas

1901 L. Boltzmann in Monist Jan. 242 Where the motion of the material points is not restricted by equations of condition, as in the old effects produced by forces (for example, in the theory of elasticity, in aeromechanics, etc.,) Kirchhoff's concept of mass is intangible.

1934 L. Rosenhead tr. L. Prandtl & O. K. G. Tietjens Fund. Hydro– & Aeromechanics Introd. 2 Thin liquids and gases, in so far as they are incompressible, are the province of hydromechanics and aeromechanics in the narrow sense of the words.

2000 D. Fossum et al. Discov. & Innovation xxxvi. 428 The directorate..is organized into four technology divisions (Structures, Flight Control, Aeromechanics, and Vehicle Subsystems), which span all R&D areas associated with the..experimental simulation, design, and test of aerospace flight vehicles.