Polytechnical Dictionary

• Contains 70,000 terms and 4,000 acronyms on all major areas of science and technology, such as:
• - electronics,
• - power engineering,
• - automation,
• - metallurgy,
• - construction,
• - transportation,
• - physics,
• - chemistry,
• - terminology relating to computing systems and information technologies,
• - computer networks,
• - telecommunications,
• - television, and video equipment.

полый вал

arbre tubulaire