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overhead    音标拼音: ['ovɚh'ɛd]
n. 经常开支,普通用费
a. 在头上的,高架的
ad. 在头顶上,在空中,在高处

经常开支,普通用费在头上的,高架的在头顶上,在空中,在高处

overhead
耗消; 额外支出的; 额外支出; 管理费用; 总支出; 虚耗; 开销

overhead
一般管理费用 负担 架空

overhead
adv 1: above your head; in the sky; "planes were flying
overhead"
2: above the head; over the head; "bring the legs together
overhead"
adj 1: located or originating from above; "an overhead crossing"
[ant: {subsurface}, {surface}]
n 1: the expense of maintaining property (e.g., paying property
taxes and utilities and insurance); it does not include
depreciation or the cost of financing or income taxes [synonym:
{operating expense}, {operating cost}, {overhead}, {budget
items}]
2: (computer science) the processing time required by a device
prior to the execution of a command [synonym: {command processing
overhead time}, {command processing overhead}, {command
overhead}, {overhead}]
3: (computer science) the disk space required for information
that is not data but is used for location and timing [synonym:
{disk overhead}, {overhead}]
4: a transparency for use with an overhead projector [synonym:
{viewgraph}, {overhead}]
5: (nautical) the top surface of an enclosed space on a ship
6: a hard return hitting the tennis ball above your head [synonym:
{overhead}, {smash}]

Overhead \O`ver*head"\, adv.
Aloft; above; in or attached to the ceiling or roof; in the
story or upon the floor above; in the zenith.
[1913 Webster]

While overhead the moon
Sits arbitress. --Milton.
[1913 Webster]

Note: Also used adjectively; as, an overhead crane, gear,
etc.
[1913 Webster]

{Overhead engine}, a vertical steam engine in which the
cylinder stands above the crank.

{Overhead work}, a general term in manufactories for
countershafting and gearing, when overhead.
[1913 Webster]


overhead \o"ver*head`\, n.
1. same as {overhead expenses}.
[PJC]

2. A compartment on a train, bus, or airplane used for
storage of luggage or accessory equipment; called also
overhead compartment.
[PJC]

3. (Sports) A stroke with a racket in which the ball is
struck with the racket over the head, moving in a downward
motion; also called overhead stroke.
[PJC] Overhead charges

76 Moby Thesaurus words for "overhead":
above, abovestairs, airward, aloft, aloof, budget, budget items,
burden of expenditure, carrying charge, ceiling, charges, cost,
cost of living, cost-of-living allowance, cost-of-living index,
costs, direct costs, disbursals, distributed costs, eaves,
elevated, expenditures, expense, expense account, expenses,
general expenses, high, high up, housetop, in the air,
in the clouds, indirect costs, labor costs, lantern, liabilities,
maintenance, material costs, on high, on stilts, on the peak,
on tiptoe, operating costs, operating expense, outlay, over,
overhead, penthouse, plafond, prime cost, raised, replacement cost,
ridgepole, roof, roof garden, roof-deck, roofage, roofing,
roofpole, rooftop, rooftree, shingles, skylight, skyward, slates,
straight up, swindle sheet, tiles, tiptoe, to the zenith, top,
unit cost, up, upper, upstairs, upward, upwards

1. Resources (in computing usually processing time or storage
space) consumed for purposes which are incidental to, but
necessary to, the main one. Overheads are usually
quantifiable "costs" of some kind.

Examples: The overheads in running a business include the cost
of heating the building. Keeping a program running all the
time eliminates the overhead of loading and initialising it
for each transaction. Turning a {subroutine} into {inline}
code eliminates the call and return time overhead for each
execution but introduces space overheads.

2. information, such as control, routing, and
error checking characters, that is transmitted along with the
user data. It also includes information such as network
status or operational instructions, network routing
information, and retransmissions of user data received in
error.

3. Overhead transparencies or "slides" (usually 8-1/2" x 11")
that are projected to an audience via an overhead (flatbed)
projector.

(1997-09-01)


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