Dauerschlagwerk 



55 



Desakkomodation 



shock or impact test (specimen). 

 -Schlagwerk continuous or fatigue 

 impact test machine. -Stand- 

 festigkeit (long-time) creep 

 strength, creep resistance, sta- 

 tic fatigue stress, creep limit. 

 -standfestigkei tsprCTfung (long- 

 time) creep test, -standversuch 

 creep test, fatigue test, -strich 

 long dash, permanent note (N and 

 A interlocking, in df). -strom 

 persistent current, -ton per- 

 manent note, tone, sound or 

 signal, -zustand steady state. 



Daumen mechanical operating part 

 resemblung a thumb, as a cam. 



Daumen, Hebe- cam, tappet, finger, 

 disk with lobe. Steuer- se- 

 quence switch cam. 



Daumen-mutter thumb nut. -rad 

 sprocket (wheel). - sehe i be cam 

 (wheel), disk with lobes. 



D*äuml ing cam knob. 



dazwischentreten intervene. 



Debye-Scherrer-Ring D. -S. ring or 

 circle, powder pattern, Hull r. 



Decke belly (of string instrument). 



decKeln provide with lid or cover. 



Deckenprojektor ceiling projector 

 (to determine cloud height). 



Deck-fahigkei tsmesser (Farbe) 

 cryptometer (measures concealing 

 power of paint), -glas einer 

 Linse anterior surface of a lens. 

 -glaschen cover glass (of micro- 

 scope), -kraft density (phot.), 

 opacity, hiding, concealing or 

 covering power (of paints). 

 -kraftmesser cryptometer. -mittel 

 covering material, resist, pro- 

 tective coat (in etching work), 

 "ground", -pei lung alignment 

 bearing, -plättchen cover slides. 



Deckung registry, cover, covering, 

 coincidence, congruence (geom.); 

 intensity or coverage (of a nega- 

 tive, opt.), stereoscopic con- 

 tact (in range finder). 



deformierte Fläche deformed surface, 

 figured s. 



dehnbar machen ductilize (wire). 



DehnbarKei tsmesser ductilimeter, 

 dilatometer, extensometer. 



Dehner expander (in volume-range 

 control). 



Dehnung, Bruch- total extension or 

 elongation, breaking tension, 

 stretch (paper). Rück- damping 

 capacity (re: metals). Ze it- 

 high-speed camera shooting; time 

 scale increase. 



Dehnungs-diagramm, Spannungs- 

 stress-strain diagram, stress- 

 deformation d. -fuge expansion 

 joint, -grenze yield point. 

 -messer dilatometer, extensometer, 

 ductilimeter. -modul us modulus 

 of extension, (often) Young's 

 modulus of elasticity, -schlitz 

 slip joint (Martin furnace). 

 -welle dilational wave, -zahl 

 coefficient of expansion or ex- 

 tension. 



dekadische Logarithmen common 

 logarithms. 



dekonzentriert de-focused, de- 

 bunched, dispersed, out of focus. 



Dekoration set (m.p.). 



Dekrement, Dämpfungs-, scheinbares 

 logarithmisches equivalent 

 logarithmic decrement. 



Dekrementmesser decremeter. 



Delta-Verfahren "toe" negative 

 method (phot. ). 



Demodulation demodulation, detec- 

 tion, rectification. 



demontieren demount, disassemble, 

 dismantle, take apart, knock down. 



Densitometer, Kugel-, integrie- 

 rendes integrating spherical 

 densitometer. 



Densogramm, Mikro- microdensitometer 

 record. 



derb solid, compact, dense, firm, 

 rough, strong. 



Derbhei t ruggedness, robustness, 

 solidity, strength. 



Desakkomodation, zeitliche magnetic 

 ageing (irreversible decrease of 

 permeability with time). 



