d라이브러리
"mud"(으)로 총 15건 검색되었습니다.
- 과학평론과학동아 l199112
- a horny one like the duck's.The water in which the duckbill lives is invariably muddy at the bottom and it is in this mud that the duckbill roots for its food supply, It can also detect ...
- 우리의 조상인 실러캔스과학동아 l199108
- and make their way to larger pools.When this is not possible, especially in the summer, they can cake themselves in mud and stay largely immobile for the season. This is called "estivation," Wh ...
- 발 달린 고래과학동아 l199010
- could be of no use on land and of little use in swimming. The legs might have been used to help scramble out of mud in shallow water.Some suspect, though, that the legs were primarily used to h ...
- PARTⅢ 지열발전과학동아 l199001
- 이러한 구조대는 화산과 지진의 발생이 빈번하며, 이에 수반하여 고온의 증기, 진흙늪(mud pond) 및 온천의 용출(湧出) 등이 지표상에 나타난다. 또한 이러한 지열대에서는 지표 가까이에서 1백℃ 이상의 물과 증기가 나타나며 대체로 수백m 심도에서 1백-3백℃의 증기를 얻어 지열발전 등에 이용된다. ... ...
- 우리의 옛 선조들과학동아 l198712
- Those tools were discovered 13 feet underground. Objects that remain undisturbed are slowly covered by dust and mud that turns into rocks, and tools buried that deep must be far more than 6,00 ...
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