The windmill and wind power generation device which can function on a downwind type windmill also as a vertical-axis type windmill
[更多]
The decoration costume made of origami which makes the kimono of Japanese clothes.
[更多]
The ventilation opening tool attached to the ventilating hole which communicates indoor and the outdoors.
[更多]
The rotation windmill which rotates in the fixed direction.
[更多]
The organic-waste-water processing method useful also to the waste water treatment which contains an organic matter in high concentration.
[更多]
| |< <- | [1] [2] [3] [4] [5] [6] [7] [8] [9] | -> >| |
