英文字典中文字典


英文字典中文字典51ZiDian.com



中文字典辞典   英文字典 a   b   c   d   e   f   g   h   i   j   k   l   m   n   o   p   q   r   s   t   u   v   w   x   y   z       







请输入英文单字,中文词皆可:

nitrocellulose    音标拼音: [n,ɑɪtros'ɛljəl,os]
n. 硝化纤维

硝化纤维

nitrocellulose
n 1: a nitric acid ester; used in lacquers and explosives [synonym:
{cellulose nitrate}, {nitrocellulose}, {guncotton},
{nitrocotton}]

Gun \Gun\ (g[u^]n), n. [OE. gonne, gunne; of uncertain origin;
cf. Ir., Gael., & LL. gunna, W. gum; possibly (like cannon)
fr. L. canna reed, tube; or abbreviated fr. OF. mangonnel, E.
mangonel, a machine for hurling stones.]
1. A weapon which throws or propels a missile to a distance;
any firearm or instrument for throwing projectiles,
consisting of a tube or barrel closed at one end, in which
the projectile is placed, with an explosive charge (such
as guncotton or gunpowder) behind, which is ignited by
various means. Pistols, rifles, carbines, muskets, and
fowling pieces are smaller guns, for hand use, and are
called {small arms}. Larger guns are called {cannon},
{ordnance}, {fieldpieces}, {carronades}, {howitzers}, etc.
See these terms in the Vocabulary.
[1913 Webster]

As swift as a pellet out of a gunne
When fire is in the powder runne. --Chaucer.
[1913 Webster]

The word gun was in use in England for an engine to
cast a thing from a man long before there was any
gunpowder found out. --Selden.
[1913 Webster]

2. (Mil.) A piece of heavy ordnance; in a restricted sense, a
cannon.
[1913 Webster]

3. pl. (Naut.) Violent blasts of wind.
[1913 Webster]

Note: Guns are classified, according to their construction or
manner of loading as {rifled} or {smoothbore},
{breech-loading} or {muzzle-loading}, {cast} or
{built-up guns}; or according to their use, as {field},
{mountain}, {prairie}, {seacoast}, and {siege guns}.
[1913 Webster]

{Armstrong gun}, a wrought iron breech-loading cannon named
after its English inventor, Sir William Armstrong.

{Big gun} or {Great gun}, a piece of heavy ordnance; hence
(Fig.), a person superior in any way; as, bring in the big
guns to tackle the problem.

{Gun barrel}, the barrel or tube of a gun.

{Gun carriage}, the carriage on which a gun is mounted or
moved.

{Gun cotton} (Chem.), a general name for a series of
explosive nitric ethers of cellulose, obtained by steeping
cotton in nitric and sulphuric acids. Although there are
formed substances containing nitric acid radicals, yet the
results exactly resemble ordinary cotton in appearance. It
burns without ash, with explosion if confined, but quietly
and harmlessly if free and open, and in small quantity.
Specifically, the lower nitrates of cellulose which are
insoluble in ether and alcohol in distinction from the
highest (pyroxylin) which is soluble. See {Pyroxylin}, and
cf. {Xyloidin}. The gun cottons are used for blasting and
somewhat in gunnery: for making celluloid when compounded
with camphor; and the soluble variety (pyroxylin) for
making collodion. See {Celluloid}, and {Collodion}. Gun
cotton is frequenty but improperly called
{nitrocellulose}. It is not a nitro compound, but an ester
of nitric acid.

{Gun deck}. See under {Deck}.

{Gun fire}, the time at which the morning or the evening gun
is fired.

{Gun metal}, a bronze, ordinarily composed of nine parts of
copper and one of tin, used for cannon, etc. The name is
also given to certain strong mixtures of cast iron.

{Gun port} (Naut.), an opening in a ship through which a
cannon's muzzle is run out for firing.

{Gun tackle} (Naut.), the blocks and pulleys affixed to the
side of a ship, by which a gun carriage is run to and from
the gun port.

{Gun tackle purchase} (Naut.), a tackle composed of two
single blocks and a fall. --Totten.

{Krupp gun}, a wrought steel breech-loading cannon, named
after its German inventor, Herr Krupp.

{Machine gun}, a breech-loading gun or a group of such guns,
mounted on a carriage or other holder, and having a
reservoir containing cartridges which are loaded into the
gun or guns and fired in rapid succession. In earlier
models, such as the {Gatling gun}, the cartridges were
loaded by machinery operated by turning a crank. In modern
versions the loading of cartidges is accomplished by
levers operated by the recoil of the explosion driving the
bullet, or by the pressure of gas within the barrel.
Several hundred shots can be fired in a minute by such
weapons, with accurate aim. The {Gatling gun}, {Gardner
gun}, {Hotchkiss gun}, and {Nordenfelt gun}, named for
their inventors, and the French {mitrailleuse}, are
machine guns.

{To blow great guns} (Naut.), to blow a gale. See {Gun}, n.,
3.
[1913 Webster PJC]


Nitrocellulose \Ni`tro*cel"lu*lose`\, n. [Nitro- cellulose.]
(Chem.)
See {Gun cotton}, under {Gun}.
[1913 Webster]


请选择你想看的字典辞典:
单词字典翻译
nitrocellulose查看 nitrocellulose 在百度字典中的解释百度英翻中〔查看〕
nitrocellulose查看 nitrocellulose 在Google字典中的解释Google英翻中〔查看〕
nitrocellulose查看 nitrocellulose 在Yahoo字典中的解释Yahoo英翻中〔查看〕





安装中文字典英文字典查询工具!


中文字典英文字典工具:
选择颜色:
输入中英文单字

































































英文字典中文字典相关资料:


  • Meningitis: Causes, Symptoms, Diagnosis Treatment
    Meningitis makes the protective layers surrounding your brain and spinal cord swell Bacteria, viruses, fungi, parasites and noninfectious conditions can cause meningitis Common symptoms include fever, neck stiffness and light sensitivity If you think you have meningitis, go to the ER immediately Contents What Is Meningitis?
  • Meningitis - Symptoms and causes - Mayo Clinic
    Viral infections are the most common cause of meningitis in the United States, followed by bacterial infections and, rarely, fungal and parasitic infections Because bacterial infections can lead to death, finding the cause is vital
  • Meningitis: Symptoms, Causes, Types, Treatment, Risks, Vaccine - Healthline
    Meningitis is an inflammation of the fluid and three membranes (meninges) surrounding your brain and spinal cord The most common causes of meningitis are viral and bacterial infections
  • Meningitis | Meningitis | CDC
    Many different things can cause meningitis, including bacteria, viruses, parasites, and fungi
  • Meningitis - Wikipedia
    Meningitis caused by the bacterium Neisseria meningitidis (known as "meningococcal meningitis") can be differentiated from meningitis with other causes by a rapidly spreading petechial rash, which may precede other symptoms [18]
  • About Meningitis | Meningitis | CDC
    Meningococcal disease is any illness caused by a type of bacteria called Neisseria meningitidis These illnesses are serious and can but don't always include meningitis
  • Meningitis - Johns Hopkins Medicine
    Meningitis is a disease caused by an inflammation of the meninges, the membranes that surround the brain and spinal cord It's usually caused by a virus, although it can be caused by bacteria, a fungus, or tuberculosis
  • Meningitis: Symptoms, Causes, Transmission, and Treatment - WebMD
    In many cases, bacterial meningitis starts when bacteria get into your bloodstream from your sinuses, ears, or throat The bacteria travel through your bloodstream to your brain The bacteria
  • Meningitis - World Health Organization (WHO)
    Most bacteria that cause meningitis, including meningococcus, pneumococcus and Haemophilus influenzae, are carried in the human nose and throat They are spread from person to person by respiratory droplets or throat secretions
  • Meningitis - National Institute of Neurological Disorders and Stroke
    Parasites that cause meningitis are more common outside of the U S and include cysticercosis (a tapeworm infection in the brain) and cerebral malaria There are rare cases of meningitis caused by amoebas (single cell organisms), sometimes related to freshwater swimming





中文字典-英文字典  2005-2009