• The development of the invention/

• The development of the invention/technology
• Its operation (how it works)
• Its significance (how it has contributed to human development or comfort)

ผลลัพธ์ (อังกฤษ) 2:

• The Development of the Invention / Technology
• Its Operation (How it Works)
• Its significance (How has it contributed to Human Development or Comfort).

ผลลัพธ์ (อังกฤษ) 3:

Education The development of the invention / technology
- Its operation (how it works)
* Its significance (how it has contributed. To human development or comfort)
.