الفترة:
الموضوعات: الليزر؛ التجارب؛ الكهرباء
Subjects: Jet engines
Subjects: Physics; Research
Subjects: Clays
Subjects: Security measures
Subjects: Bladder; Cancer
Subjects: Electrical properties; Silicon; Temperatures
Subjects: Salts
Subjects: Construction projects; Economic aspects; Management; Quality assurance
Subjects: Electrical properties; Silicon
Subjects: Optical properties
Subjects: Alloys; Materials science