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t 音标拼音: [t'i] n. 字母 t字母 tT) 电报电话服务(美国电话电报公司) MTST n 1: a base found in DNA ( but not in RNA) and derived from pyrimidine; pairs with adenine [ synonym: { thymine}, { T}] 2: one of the four nucleotides used in building DNA; all four nucleotides have a common phosphate group and a sugar ( ribose) [ synonym: { deoxythymidine monophosphate}, { T}] 3: a unit of weight equivalent to 1000 kilograms [ synonym: { metric ton}, { MT}, { tonne}, { t}] 4: the 20th letter of the Roman alphabet [ synonym: { T}, { t}] 5: thyroid hormone similar to thyroxine but with one less iodine atom per molecule and produced in smaller quantity; exerts the same biological effects as thyroxine but is more potent and briefer [ synonym: { triiodothyronine}, { liothyronine}, { T}] 6: hormone produced by the thyroid glands to regulate metabolism by controlling the rate of oxidation in cells; " thyroxine is 65% iodine" [ synonym: { thyroxine}, { thyroxin}, { tetraiodothyronine}, { T}] Mute \ Mute\, n. 1. One who does not speak, whether from physical inability, unwillingness, or other cause. Specifically: ( a) One who, from deafness, either congenital or from early life, is unable to use articulate language; a deaf- mute. ( b) A person employed by undertakers at a funeral. ( c) A person whose part in a play does not require him to speak. ( d) Among the Turks, an officer or attendant who is selected for his place because he can not speak. [ 1913 Webster] 2. ( Phon.) A letter which represents no sound; a silent letter; also, a close articulation; an element of speech formed by a position of the mouth organs which stops the passage of the breath; as, { p}, { b}, { d}, { k}, { t}. [ 1913 Webster] 3. ( Mus.) A little utensil made of brass, ivory, or other material, so formed that it can be fixed in an erect position on the bridge of a violin, or similar instrument, in order to deaden or soften the tone. [ 1913 Webster]
T \ T\ ( t[= e]), the twentieth letter of the English alphabet, is a nonvocal consonant. With the letter h it forms the digraph th, which has two distinct sounds, as in thin, then. See Guide to Pronunciation, [ sect][ sect] 262- 264, and also [ sect][ sect] 153, 156, 169, 172, 176, 178- 180. [ 1913 Webster] The letter derives its name and form from the Latin, the form of the Latin letter being further derived through the Greek from the Ph[ oe] nician. The ultimate origin is probably Egyptian. It is etymologically most nearly related to d, s, th; as in tug, duke; two, dual, L. duo; resin, L. resina, Gr. " rhti` nh, tent, tense, a., tenuous, thin; nostril, thrill. See { D}, { S}. [ 1913 Webster] { T bandage} ( Surg.), a bandage shaped like the letter T, and used principally for application to the groin, or perineum. { T cart}, a kind of fashionable two seated wagon for pleasure driving. { T iron}. ( a) A rod with a short crosspiece at the end, -- used as a hook. ( b) Iron in bars, having a cross section formed like the letter T, -- used in structures. { T rail}, a kind of rail for railroad tracks, having no flange at the bottom so that a section resembles the letter T. { T square}, a ruler having a crosspiece or head at one end, for the purpose of making parallel lines; -- so called from its shape. It is laid on a drawing board and guided by the crosspiece, which is pressed against the straight edge of the board. Sometimes the head is arranged to be set at different angles. { To a T}, exactly, perfectly; as, to suit to a T. [ Colloq.] [ 1913 Webster] 1. True. A { Lisp} compiler by Johnathan A. Rees in 1982 at
{ Yale University}. T has { static scope} and is a
near- superset of { Scheme}. { Unix} source is available. T is
written in itself and compiles to efficient native code. Used
as the basis for the Yale { Haskell} system. Maintained by
David Kranz .
Latest version: 3.1.
{(ftp://ftp.ai.mit.edu/pub/systems/t3.1)}.
A {multiprocessing} version of T is available
{(ftp://masala.lcs.mit.edu/pub/mult)}.
Runs on {Decstation}, {SPARC}, {Sun-3}, {Vax} under {Unix},
{Encore}, {HP}, {Apollo}, {Macintosh} under {A/UX}.
E-mail: (bugs).
E-mail: .
(1991-11-26)
["The T Manual", Johnathan A. Rees et
al, Yale U, 1984].
2. A {functional language}.
["T: A Simple Reduction Language Based on Combinatory Term
Rewriting", Ida et al, Proc of Prog Future Generation
Computers, 1988].
3. (lower case) The {Lisp} {atom} used to represent "true",
among other things. "false" is represented using the same
atom as an empty list, {nil}. This {overloading} of the basic
constants of the language helps to make Lisp {write-only
code}.
4. In transaction-processing circles, an abbreviation for
"transaction".
5. (Purdue) An alternative spelling of "{tee}".
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