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单词 df
释义

DF


DF

abbr.1. Latin Defensor Fidei (Defender of the Faith)2. direction finder

DF

abbreviation for (Heraldry) Defender of the Faith

D/F

or DF,

1. direction finder. 2. direction finding.

D.F.

Doctor of Forestry.

DF


DF

1. Abbr. for daylight factor. 2. On drawings, abbr. for drinking fountain.

DF (direction finder)

A radio receiver equipped with a direction-sensing antenna used to take bearings on a radio transmitter. A direction finder essentially consists of a loop aerial. To remove 180° ambiguity, a sense aerial is also brought into the circuit. The DF system can either be airborne or ground-based. See automatic direction finder.

df


degree

 [dĕ-gre´] 1. a grade or rank within a series, especially a rank awarded to scholars by a college or university.2. a unit of measure of temperature.3. a unit of measure of arcs and angles, one degree being 1/360 of a circle.4. one of the ranks or stages in a progressive series.d's of freedom (df) the number of ways that the members of a sample can vary independently. For example, if a sample contains n scores and the sum of those scores is known, n − 1 scores are free to vary; the nth score, however, is not free to vary but is determined by the values of the other scores and the established sum of the scores. In this example, the degrees of freedom equal the sample size minus 1 (df = n − 1).

df

, DFAbbreviation for decayed and filled teeth.Synonym(s): df caries index

DF

, dfAbbreviation for df caries index.
LegalSeedegree

DF


AcronymDefinition
DF➣Distrito Federal (Spanish: Federal District)
DF➣Data Frame
DF➣Dairy Free
DF➣Disk Free
DF➣Distrito Federal (Brazil)
DF➣Delta Force (Novalogic military combat game)
DF➣Drug Free
DF➣Dwarf Fortress (video game)
DF➣Dansk Folkeparti
DF➣Direction Finder
DF➣Degree of Freedom
DF➣La Documentation Française (France)
DF➣Dual Frequency
DF➣Don't Fragment
DF➣Dead Fish
DF➣Direction Flag
DF➣Drinking Fountain (various companies)
DF➣Diesel Fuel
DF➣Disk Farm
DF➣Delay Fuse
DF➣Dodd-Frank (finance law)
DF➣Dragon Force (band)
DF➣Dietary Fiber
DF➣Dengue Fever
DF➣Darkfall (game)
DF➣Dong Feng (Asia automobile manofacturer)
DF➣Douglas Fir
DF➣Distraction Free (web browser extension)
DF➣Data Field
DF➣Dead Frontier
DF➣Decision Feedback
DF➣Darkness Falls (Dark Age of Camelot online game)
DF➣Dissipation Factor
DF➣Dirt Farmer
DF➣Divine Forces (gaming; Runescape clan)
DF➣Dark Forces (LucasArts game)
DF➣Defence Forces (Irish Army)
DF➣Derek Fisher (NBA Player)
DF➣David Farrell (composer)
DF➣Dragonfable (online game)
DF➣Double Feature
DF➣Destination Field
DF➣Data Fusion
DF➣Dancefit
DF➣Dilution Factor
DF➣Design Feature
DF➣Dorsiflexion
DF➣Digital Forensics
DF➣Dobbs Ferry (New York)
DF➣Depth Finder
DF➣Down Forward (video game)
DF➣Disposal Facility
DF➣Discount Factor
DF➣Dean of the Faculty
DF➣Design Flow
DF➣Democratic Front (India)
DF➣Deep Forest (band)
DF➣Dungeon Family (Collection of Bands)
DF➣Dog Fight (air-to-air combat)
DF➣Duty Factor
DF➣Dedicated File
DF➣Drilling Fluid
DF➣Dioxins and Furans
DF➣Despair Faction (website)
DF➣Damage Free
DF➣Disposition Form
DF➣Districto Federal
DF➣Darling Fiancee
DF➣Delivery Function
DF➣Dark Future (role playing game)
DF➣Degree Fahrenheit
DF➣Dermatofibroma (skin tumor)
DF➣Distribution Frame
DF➣Defender of the Faith
DF➣Deep Freezer (storage and preservation)
DF➣Deuterium Fluoride
DF➣Difference Frequency
DF➣Digital Fortress (book)
DF➣Defensive Fire
DF➣Distance Formula
DF➣Density Factor
DF➣Decode and Forward
DF➣Distriktsidrottsförbund (Swedish Gymnastics Federation)
DF➣Device Flag
DF➣Diamond Frame (bicycle)
DF➣Dead Fantasy (anime)
DF➣Digital Fingerprint
DF➣DynaFlat (Samsung monitor)
DF➣Double Flag
DF➣Deblocking Filter
DF➣Dielectric Film
DF➣Decontamination Factor
DF➣Dose Factor
DF➣Destroyer Flotilla
DF➣Development Flight
DF➣Data Formatter
DF➣Dead Freight
DF➣Dispersion Factor
DF➣Decimation Factor
DF➣Direct Fulfillment (contract manufacturer sends product directly to the customer)
DF➣Dead Files
DF➣Delivery Facility (Canada Post)
DF➣Delay Fault
DF➣Duplex Filter
DF➣Dark Falz (Phantasy Star Online boss, gaming)
DF➣Dynamic Flux
DF➣Danske Folkedanseres (Denmark)
DF➣Die Famous
DF➣Dark Friend
DF➣Dynamo Field (automotive electronics)
DF➣Dark Faction (video game)
DF➣Dimensional Fact (data warehouse model)
DF➣Double Feeder
DF➣Dissociation Factor (chemistry)
DF➣The Elder Scrolls: Daggerfall (computer game)
DF➣DuelField (online game)
DF➣Delay Fuze
DF➣Demodulation Filter
DF➣Drainage Frequency
DF➣Dhammakaya Foundation
DF➣Droopy Flange
DF➣Duck Farm, Inc.
DF➣Dysfunctional Fighters (gaming clan)
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更新时间:2026/9/30 9:54:11