DI meaning in Space Science ?

Answer:

What is Direct Ignition mean?

A distributor is an enclosed rotating shaft used in spark-ignition internal combustion engines that have mechanically timed ignition. The distributor's main function is to route secondary, or high voltage, current from the ignition coil to the spark plugs in the correct firing order, and for the correct amount of time. Except in magneto systems and many modern computer controlled engines that use crank angle/position sensors, the distributor also houses a mechanical or inductive breaker switch to open and close the ignition coil's primary circuit.

The first reliable battery operated ignition was the Delco ignition system developed by Dayton Engineering Laboratories Co. (Delco) and introduced in the 1910 Cadillac Model 30. This ignition was developed by Charles Kettering and was considered a wonder in its day. Atwater Kent invented his Unisparker ignition system about this time in competition with the Delco system. By the end of the 20th century mechanical ignitions were disappearing from automotive applications in favor of inductive or capacitive electronic ignitions fully controlled by engine control units (ECU), rather than directly timed to the engine's crankshaft speed.

reference

Full Form	Category
Disagreement Index	Academic & Science
Roman numeral for 501	Academic & Science
Icelandic Veterinary Association	Academic & Science
Dýralæknafélag Íslands	Academic & Science
Diplomi-insinööri	Academic & Science
Didymium	Academic & Science
Discovery Institute	Associations & Organizations
Defensa Interior	Associations & Organizations
Dimensional Insight	Business
Disability Insurance	Business
Destination Imagination	Business
Development Issues	Business
Digital Interactive	Business
Diversity Index	Business
Dance Instructor	Business
Deseret Industries	Business
Defiance Industries	Business
Dealer Installed	Business
DynCorp International	Business
Democracy Index	Business
Deionized Water	Chemistry
Diffusion Index	Chemistry
Daily Interesting	Community
District Liaison	Community
Digital Interface	Computer and Networking
Distribution Interface	Computer and Networking
Direct Instruction	Computer Assembly Language
Deletion and Insertion	Computer Assembly Language
Direct Imaging	Computing
Digitally-Integrated	Computing
Data In	Computing
Directional Influence	Computing
Digitally Imported	Computing
Dependency Injection	Computing
Destination Index	Database Management
Diploma	Educational Degree
Dielectric Isolation	Electronics
Direct Input	Electronics
Destructive Interference	Electronics
De-ionized	Electronics
Decorativnoye Iskusstvo	General
Divine Intervention	General
Dramatic Interpretation	General
Dilution Index	General
Digital Integrated	General
Drill Instructors	General
Destructive Input	General
Digitally Inked	General
Discretionary Income	General
The Death Index	General
Destruction Inflicted	General
Diana Ima	General
Differentiated Instruction	General
Diagram Interchange	General
Destonation Imagination	General
Distinctive Insignia	General
Ductile Iron	General
Diplomatic Influence	General
A Domestic Income	General
Detailed Instruction	General
Declaration Of Intention	General
Desktop Instructions	General
Differentation Index	General
Dumb Idiot	General
Due In	General
Drive Image	General
Diplomatarium Islandicum	General
Diplom Ingenieur	General
DI is	General
Diabete Insipidus	General
Device Interface	General
Digital Intermediate	General
Design Interlligence	General
Depth Image	General
Disruptive Influence	Governmental
Driver Improvement	Governmental
Detective Inspector	Governmental
DIA (Defense Intelligence Agency) Directorate for Analysis	Governmental
Design Institute	Governmental
Diplomatic Immunity	Governmental
Destination Inspection	Governmental
Defense Intelligece	Governmental
Direct Impingement	Governmental
Direzione Italia	Governmental
DOMBIVIL	Indian Railway Station
Decreto Interministeriale	International
Darul Islam	International
Asociación de Damas Isabelinas	International
Der Infy	International
Development Intern	Jobs
Direct Inject	Medical
Direct Injection	Medical
Days of Incubation	Medical
Dead Implant	Medical
Deep Inhalation	Medical
Dental Index	Medical
Dentinogenesis Imperfecta	Medical
Detrusor Instability	Medical
Diagnostic Index	Medical
Diastolic Interval	Medical
Dietary Intake	Medical
Diffusion Imaging	Medical
Director of Information	Medical
Dirofilaria immitis	Medical
Diagnostic Imaging	Medical
Disability Index	Medical
Disto-Incisal	Medical
Damage Interval	Medical
Distraction Index	Medical
Disability Income	Medical
Dobutamine Infusion	Medical
Donor Insemination	Medical
Dorso-Iliac	Medical
Double Immunodiffusion	Medical
Drug-Induced	Medical
Dyskaryosis Index	Medical
Diabetis Insipidus	Medical
Diabetes Insipidus	Medical
Disease Information	Medical
Date of Injury	Medical
Damned Impressive	Messaging
Defense Intelligence Agency (dia) Directorate for Analysis	Military and Defence
Dynamic Interface	Military and Defence
Data Interchange	Military and Defence
Data Item	Military and Defence
Drill Instructor	Military and Defence
Damage Inflicted	Military and Defence
Dagens industri	News & Entertainment
Davis Island, Florida	Regional
Desert Inn	Regional
Data Integration	Softwares
Digital Input	Softwares
Digital Imaging	Softwares
Display Interface	Space Science
Direct Ignition	Space Science
Doppler Inertial	Space Science
Data Integrator	Space Science
Development Integration	Space Science
Discrete Input	Space Science
Disposable Income	Stock Exchange
Depositary Interest	Stock Exchange
Norwegian Air	Transport & Travel
Direction Indicator	Transport & Travel