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scan    音标拼音: [sk'æn]
n. 审视,浏览,扫描,押韵,细查
vt. 细看,浏览,扫描,详细调查;
信件扫描,(指BBS处理直递邮件或会议邮件时,对所有或特定信区做检查的动作)

审视,浏览,扫描,押韵,细查细看,浏览,扫描,详细调查; 信件扫描,(指BBS处理直递邮件或会议邮件时,对所有或特定信区做检查的动作)

scan
扫瞄


scan
自选择U 扫描

scan
扫描

scan
n 1: the act of scanning; systematic examination of a prescribed
region; "he made a thorough scan of the beach with his
binoculars"
2: an image produced by scanning; "he analyzed the brain scan";
"you could see the tumor in the CAT scan" [synonym: {scan}, {CAT
scan}]
v 1: examine minutely or intensely; "the surgeon scanned the
X-ray"
2: examine hastily; "She scanned the newspaper headlines while
waiting for the taxi" [synonym: {scan}, {skim}, {rake}, {glance
over}, {run down}]
3: make a wide, sweeping search of; "The beams scanned the night
sky"
4: conform to a metrical pattern
5: move a light beam over; in electronics, to reproduce an image
6: read metrically; "scan verses"
7: obtain data from magnetic tapes; "This dictionary can be read
by the computer" [synonym: {read}, {scan}]

Scan \Scan\ (sk[a^]n), v. t. [imp. & p. p. {Scanned} (sk[a^]nd);
p. pr. & vb. n. {Scanning}.] [L. scandere, scansum, to climb,
to scan, akin to Skr. skand to spring, leap: cf. F. scander.
Cf. {Ascend}, {Descend}, {Scale} a ladder.]
1. To mount by steps; to go through with step by step. [Obs.]
[1913 Webster]

Nor stayed till she the highest stage had scand.
--Spenser.
[1913 Webster]
[1913 Webster]

2. Specifically (Pros.), to go through with, as a verse,
marking and distinguishing the feet of which it is
composed; to show, in reading, the metrical structure of;
to recite metrically.
[1913 Webster]

3. To go over and examine point by point; to examine with
care; to look closely at or into; to scrutinize.
[1913 Webster]

The actions of men in high stations are all
conspicuous, and liable to be scanned and sifted.
--Atterbury.
[1913 Webster]

4. To examine quickly, from point to point, in search of
something specific; as, to scan an article for mention of
a particular person.
[PJC]

5. (Electronics) To form an image or an electronic
representation of, by passing a beam of light or electrons
over, and detecting and recording the reflected or
transmitted signal.
[PJC]

121 Moby Thesaurus words for "scan":
alliterate, analysis, assonate, audit, autopsy, block out, browse,
canvass, cap verses, check, check out, check over, check up on,
command, con, delve into, detail, dip into, domination, enumerate,
examination, examine, examine cursorily, eyereach, eyeshot,
eyesight, field of view, field of vision, flip through,
give an examination, give the once-over, glance, glance at,
glance over, glance through, go over, home on, horizon, identify,
inspect, inspection, investigate, itemize, jingle, ken,
limit of vision, line of sight, look, look at, look over, map,
monitor, naked eye, number, observation, observe, outline, outlook,
outlook over, overhaul, overhauling, overlook, overview,
page through, parse, pass over, pass over lightly,
pass under review, peer at, perlustration, perspective, perusal,
peruse, pick up, pinpoint, pore over, postmortem, prospect,
quality control, range, receive, reconnaissance, research, resolve,
review, rhyme, run over, run through, run-through, schematize,
scope, scope of vision, scrutinize, scrutiny, set an examination,
sight, sightliness, size, size up, skim, skim over, skip over,
slip through, slur, slur over, spot, study, survey, sweep,
take stock of, take the measure, thumb over, thumb through,
touch upon, touch upon lightly, trigger, tune in, view, visitation,
vista, zip through

1. (computer peripheral) See {scanner}.

2. (circuit design) See {scan design}.

3. ({functional programming}) See {scanl}, {scanr}.

4. An algorithm for scheduling multiple
accesses to a disk. A number of requests are ordered
according to the data's position on the storage device. This
reduces the disk arm movement to one "scan" or sweep across
the whole disk in the worst case. The serivce time can be
estimated from the disk's track-to-track {seek} time, maximum
seek time (one scan), and maximum {rotational latency}.

{Scan-EDF} is a variation on this.

(1995-11-15)

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