D字彙

D C motor controller
D cast（die casting）

dark face
darken
dash
data
date
DC（d-c, direct current）
decagon
deciduous trees
declination
declivity
decoration
decrease
deficit area
deflection angle
DEG（degree）
deletion
delineate
delineation
demarcation
demonstration
demy paper
denominate number
denominator
departures
dependent variable
depression
descender
describe
describing circle
designation
designer
detailed section
detector diode
detour
developable
developed view
deviation
diagraph
DIAG（diagonal）
DIAG（diagram）
diameter
diazo process
DIA（diameter）
die
digit
dihedral angle
diluting of color
DIM（dimension）
DIN（Deutsche Industrie Normen）
diode
directing plane
directo print
director
directrix
disalignment
disconnecting switch
discription
discriptive graph
disposition
DIST（distance）
divided
division bar
DL（drawing list）
DL（drill）
dodecagon
dodecahedron
dominant detail
door schedule
dowel
downward inclination
DP（diametial pitch）
draftsman
draftsman's pencil
draftsman'scale
draftsmanship
drain
drilled hole
drilling
dropbow compass
DR（drawn by）
DR（drill）
DSGN（design）
DTL DWG（detail drawing）
ducks
duct
ductile [cast] iron
ductility
dull side of paper
dummy model
duplicate dimension
dust cloth
duster
dusting brush
DWG（drawing）
DWN（drawn by）
D（diameter）

dashed circle
dashed line
dashed number

datum
datum axis
datum dimensioning
datum edge
datum feature
datum identifying symbol
datum level
datum line
datum plane
datum point
datum surface

dead load
dead white

decimal
decimal dimensioning
decimal equivalent
decimal equivalent of fraction dimensions
decimal fraction system
decimal marker
decimal parts of a degree
decimal places
decimal point
decimal scale
decimal size
decimal system

definite break
definite end lines

degree
degree mark
degree of curvature
degree of eccentricity
degree of hardness

depth
depth axis
depth direction
depth gage
depth micrometer
depth of chamfering
depth of drill
depth of parabola
depth of preparation
depth of tap drill
depth of tapped hole
depth of thread
depth of thread spacing
depth rule

descriptive geometry
descriptive note

design
design chart
design drawing
design engineer
design layout
design lettering
design size
design sketch
design staff

detail
detail drawing
detail drawing number
detail paper
detail plan
detail print
detail sheet
detail sketch

development
development drawing
development elevation

diagonal
diagonal division
diagonal plane
diagonal scale

diagram
diagram drawing

diagrammatic arragnement
diagrammatic chart
diagrammatic form
diagrammatic piping drawing
diagrammatic representation
diagrammatic sketch

dial compartor
dial indicator

dimension
dimension figure
dimension forms
dimension included in frame
dimension line
dimension of size

dimensional control
dimensional limit

dimensioning
dimensioning across the chord
dimensioning angles
dimensioning around the arc
dimensioning by coordinates
dimensioning by offsets
dimensioning by ordinates
dimensioning by radii
dimensioning lines
dimensioning of circle
dimensioning scale
dimensioning standard feature
dimensioning taper
dimensioning template

dimetric angle
dimetric drawing
dimetric ellipses template
dimetric projection
dimetric scale

dip
dip angle

direct current
direct dimensioning size
direct tolerancing
direct vernier
direct-projection method

direction
direction of lay
direction of plane
direction of taper
direction of teeth

display
display drawing

distance
distance across flats

distribution diagram
distribution pannel board

ditto
ditto line（repeat line）
ditto machine

divider
divider leg

dividing line
dividing line of fraction

dot
dot-and-dash line

dotted crosshatching
dotted letter
dotted line
dotted line pen
dotted section

double bevel scale
double curvature
double curvatured suface
double curved arm of pulley
double curved line
double curved surface
double curved surface of revolution
double curved surface of transposition
double elephant size
double extra strond pipe
double helical teeth
double hyperboloid
double plane projection
double pole double throw switch
double ruled surface
double ruled warped surface
double size
double start screw thread
double strap butt joint
double thread
double vernier
double-riveted butt joint
double-riveted lap joint

dovetail
dovetail groove
dovetail seam

draft
draft angle
draft taper

drafting
drafting board
drafting film
drafting machine
drafting method
drafting paper
drafting room
drafting room record
drafting table
drafting tape
drafting-room standard

drawing
drawing board
drawing callout
drawing cloth
drawing compass
drawing desk
drawing ink
drawing instruments
drawing knife
drawing material
drawing number
drawing of an intermediate step
drawing of similar parts
drawing office
drawing paper
drawing pen
drawing pencil
drawing pennib
drawing pin
drawing proportion
drawing room
drawing scale
drawing sheet
drawing sheet size
drawing size
drawing statement
drawing symbol
drawing table
drawing technique
drawing to scale

drill
drill point

drop angle
drop forging
drop line
drop pen

dryseal straight pipe thread
dryseal taper pipe thread

dual dimensioning
dual scales
dual weld

duplicating
duplicating tracing

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