추천검색어 아크레 에이커

d라이브러리

"acre"(으)로 총 3건 검색되었습니다.

Vertical Farming과학동아 l2009년 03호

amount of light and nutrients they need. This optimization method let Valcent grow 15 times as much lettuce per acre as on a normal farm, using 5% of the water that conventional agricul­ture do ...

최신기술과학동아 l1993년 05호

clean and endless, although seldom used. Now comes the news that Advanced Photovoltaic Systems, Inc., has built a five-acre solar-energy collecting array made of a type of photovoltaic cell fou ...

가장 생명력이 강한 것과학동아 l1988년 03호

they are fecund, laying uncounted numbers of eggs. There may be as many as 4 million individual insects in one moist acre of land.This means that insects are difficult to wipe out. Kill 99 out ...