-
601.
Marine league
Subjects
Length measurementNavigation
-
602.
Marine safety
Subjects
Maritime law
-
603.
Maritime heritage
Subjects
Naval historyCultural heritage
-
604.
Masers
Subjects
Amplifiers (Electronics)Microwave devicesQuantum electronicsElectromagnetism
-
605.
Mashups (World Wide Web)
Subjects
World Wide Web
-
606.
Materials
Subjects
Engineering design
-
607.
Materials for nuclear reactors
Subjects
-
608.
Materials science
Subjects
EngineeringPhysics
-
609.
Materials testing
Subjects
Reliability (Engineering)
-
610.
Measuring instruments
Subjects
Scientific apparatus and instruments
-
611.
Mechanical engineering
Subjects
Engineering
-
612.
Mechanical movements
Subjects
KinematicsMechanical engineeringMechanicsMotion
-
613.
Mechatronics
Subjects
Mechanical engineeringMicroelectronics
-
614.
Media adapters
Genre/Form
Equipment
-
615.
Medical technology
Subjects
Technology
-
616.
Membranes (Technology)
Subjects
Separation (Technology)Technology
-
617.
Memory cards
Genre/Form
Equipment
-
618.
Merchant ships
Subjects
Merchant marineShips
-
619.
Mercury mines
Subjects
-
620.
Metal crystals
Subjects
MetallographyLiquid metals
-
621.
Metal insulator semiconductors
Subjects
Metal oxide semiconductors
-
622.
Metal oxide semiconductors
Subjects
SemiconductorsTransistors
-
623.
Metallic sheets
Subjects
Plates (Engineering)
-
624.
Metallography
Subjects
Microstructure
Last updated dated: 21/02/2026