conservation 音标拼音: [k
, ɑnsɚv'eʃən]
n .
U 保存,保护;守恒,不灭
U 保存,保护;守恒,不灭
conservation n 1 :
an occurrence of improvement by virtue of preventing loss or injury or other change [
synonym : {
conservation },
{
preservation }]
2 :
the preservation and careful management of the environment and of natural resources 3 : (
physics )
the maintenance of a certain quantities unchanged during chemical reactions or physical transformations Conservation \
Con `
ser *
va "
tion \,
n . [
L .
conservatio :
cf .
F .
conservation .]
The act of preserving ,
guarding ,
or protecting ;
the keeping (
of a thing )
in a safe or entire state ;
preservation .
[
1913 Webster ]
A step necessary for the conservation of Protestantism .
--
Hallam .
[
1913 Webster ]
A state without the means of some change is without the means of its conservation . --
Burke .
[
1913 Webster ]
{
Conservation of areas } (
Astron .),
the principle that the radius vector drawn from a planet to the sun sweeps over equal areas in equal times .
{
Conservation of energy },
or {
Conservation of force } (
Mech .),
the principle that the total energy of any material system is a quantity which can neither be increased nor diminished by any action between the parts of the system ,
though it may be transformed into any of the forms of which energy is susceptible . --
Clerk Maxwell .
[
1913 Webster ]
Energy \
En "
er *
gy \,
n .;
pl . {
Energies }. [
F . ['
e ]
nergie ,
LL .
energia ,
fr .
Gr .?,
fr . ?
active ; ?
in ?
work .
See {
In },
and {
Work }.]
1 .
Internal or inherent power ;
capacity of acting ,
operating ,
or producing an effect ,
whether exerted or not ;
as ,
men possessing energies may suffer them to lie inactive .
[
1913 Webster ]
The great energies of nature are known to us only by their effects . --
Paley .
[
1913 Webster ]
2 .
Power efficiently and forcibly exerted ;
vigorous or effectual operation ;
as ,
the energy of a magistrate .
[
1913 Webster ]
3 .
Strength of expression ;
force of utterance ;
power to impress the mind and arouse the feelings ;
life ;
spirit ; --
said of speech ,
language ,
words ,
style ;
as ,
a style full of energy .
[
1913 Webster ]
4 . (
Physics )
Capacity for performing work .
[
1913 Webster ]
Note :
The kinetic energy of a body is the energy it has in virtue of being in motion .
It is measured by one half of the product of the mass of each element of the body multiplied by the square of the velocity of the element ,
relative to some given body or point .
The available kinetic energy of a material system unconnected with any other system is that energy which is due to the motions of the parts of the system relative to its center of mass .
The potential energy of a body or system is that energy which is not kinetic ;
--
energy due to configuration .
Kinetic energy is sometimes called actual energy .
Kinetic energy is exemplified in the vis viva of moving bodies ,
in heat ,
electric currents ,
etc .;
potential energy ,
in a bent spring ,
or a body suspended a given distance above the earth and acted on by gravity .
[
1913 Webster ]
{
Accumulation }, {
Conservation }, {
Correlation }, & {
Degradation of energy },
etc . (
Physics )
See under {
Accumulation },
{
Conservation }, {
Correlation },
etc .
Syn :
Force ;
power ;
potency ;
vigor ;
strength ;
spirit ;
efficiency ;
resolution .
[
1913 Webster ]
44 Moby Thesaurus words for "
conservation ":
attention ,
care ,
cold storage ,
conservancy ,
conservationism ,
control ,
custody ,
dead storage ,
directing ,
dry storage ,
economy ,
environmental conservation ,
forest conservation ,
forest management ,
governing ,
guardianship ,
husbandry ,
keeping ,
maintenance ,
management ,
managing ,
preserval ,
preservation ,
protection ,
safeguarding ,
safekeeping ,
salvage ,
salvation ,
saving ,
shelf -
room ,
soil conservation ,
storage ,
storage space ,
stowage ,
stream conservation ,
supervising ,
supervision ,
support ,
sustentation ,
upkeep ,
warehousing ,
water conservation ,
wetlands conservation ,
wildlife conservation
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