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000 100 200 300 400 500 600 700 800 900 [ เทคโนโลยีหรือวิทยาศาสตร์ประยุกต์ (Technology (Applied Sciences) ] back |
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600 610 620 630 640 650 660 670 680 690 [ เกษตรศาสตร์ (Agriculture) ] |
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630 631 632 633 634 635 636 637 638 639 [ Techniques, equipment, materials ] |
| DC | คำอธิบาย | ||||||||
| Techniques, equipment, materials | |||||||||
| Techniques, equipment, materials S S Agriculture (General) | |||||||||
| Use of agricultural structures | |||||||||
| Use of tools, machinery, apparatus, equipment | |||||||||
| Lawn mower repair | |||||||||
| Soil science | |||||||||
| Cultivation and harvesting | |||||||||
| Clearing, drainage, revegetation | |||||||||
| Water conservation | |||||||||
| Fertilizers and soil conditioners | |||||||||
| Composting | |||||||||
| [แสดง 11/11 รายการ] | |||||||||