pneumatics 音标拼音: [nʊm'ætɪks]
n . 气体力学
气体力学
pneumatics n 1 :
the branch of mechanics that deals with the mechanical properties of gases Pneumatics \
Pneu *
mat "
ics \,
n . [
Cf .
F .
pneumatique .]
[
1913 Webster ]
1 .
That branch of science which treats of the mechanical properties of air and other elastic fluids ,
as of their weight ,
pressure ,
elasticity ,
etc .
See {
Mechanics }.
[
1913 Webster ]
2 . (
Philos . &
Theol .)
The scientific study or knowledge of spiritual beings and their relations to God ,
angels ,
and men .
[
1913 Webster ]
Mechanics \
Me *
chan "
ics \,
n . [
Cf .
F .
m ['
e ]
canique .]
That science ,
or branch of applied mathematics ,
which treats of the action of forces on bodies .
[
1913 Webster ]
Note :
That part of mechanics which considers the action of forces in producing rest or equilibrium is called {
statics };
that which relates to such action in producing motion is called {
dynamics }.
The term mechanics includes the action of forces on all bodies ,
whether solid ,
liquid ,
or gaseous .
It is sometimes ,
however ,
and formerly was often ,
used distinctively of solid bodies only :
The mechanics of liquid bodies is called also {
hydrostatics },
or {
hydrodynamics },
according as the laws of rest or of motion are considered .
The mechanics of gaseous bodies is called also {
pneumatics }.
The mechanics of fluids in motion ,
with special reference to the methods of obtaining from them useful results ,
constitutes {
hydraulics }.
[
1913 Webster ]
{
Animal mechanics } (
Physiol .),
that portion of physiology which has for its object the investigation of the laws of equilibrium and motion in the animal body .
The most important mechanical principle is that of the lever ,
the bones forming the arms of the levers ,
the contractile muscles the power ,
the joints the fulcra or points of support ,
while the weight of the body or of the individual limbs constitutes the weight or resistance .
{
Applied mechanics },
the principles of abstract mechanics applied to human art ;
also ,
the practical application of the laws of matter and motion to the construction of machines and structures of all kinds .
{
orbital mechanics },
the principles governing the motion of bodies in orbit around other bodies under gravitational influence ,
such as artificial Earth satellites .
[
1913 Webster PJC ]
39 Moby Thesaurus words for "
pneumatics ":
aerial photography ,
aeroballistics ,
aerodynamics ,
aerogeology ,
aerography ,
aerology ,
aeromechanics ,
aeromedicine ,
aerometry ,
aeronautical meteorology ,
aerophotography ,
aerophysics ,
aeroscopy ,
aerospace research ,
aerostatics ,
air ,
anemology ,
atmosphere ,
aviation technology ,
avionics ,
barometry ,
climatography ,
climatology ,
fluid ,
forecasting ,
gas ,
halogen gas ,
hydrostatics ,
inert gas ,
kinematics ,
kinetics ,
long -
range forecasting ,
meteorology ,
microclimatology ,
nephology ,
photometry ,
rocketry ,
supersonics ,
weatherology
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