- 업종: Government
- Number of terms: 30456
- Number of blossaries: 0
- Company Profile:
NOAA Coral Reef Conservation Program, National Oceanic and Atmospheric Administration, U.S. Department of Commerce
A breathing gas mixture of helium, oxygen, and nitrogen. By using trimix, it is possible for divers to descend to hundreds of feet without suffering from toxic partial pressures of oxygen (which increases with depth), and also reduces the effect of nitrogen narcosis.
Industry:Natural environment
A downward current of surface water in the ocean, usually caused by differences in the density of seawater.
Industry:Natural environment
A species defined on the characters of the type specimen.
Industry:Natural environment
A type of wetland that is dominated by woody vegetation. When it does not, it is usually termed a marsh. Swamps may be fresh or salt water and tidal or non-tidal.
Industry:Natural environment
Genes that are so closely associated on a chromosome that the allelic forms found on a chromosome are inherited together by an offspring at least 80 percent or more of the time.
Industry:Natural environment
