Some marine animals subsequently transferred to life in fresh water and on dry land, giving rise to freshwater and terrestrial fauna. Some vertebrates that returned to the marine environment have retained their ties to land, leaving the sea for reproduction (pinnipeds and sea turtles). Some birds...
Sign up with one click: Facebook Twitter Google Share on Facebook marine light [mə′rēn ′līt] (navigation) A luminous or lighted aid to navigation intended primarily for marine navigation. McGraw-Hill Dictionary of Scientific & Technical Terms, 6E, Copyright © 2003 by The McGraw-Hill...
dominates, it is frequently referred to by the generic name, such asGlobigerinaooze. Diatomaceous and radiolarian muds are named on the same basis. Where biogenic constituents compose less than 30 percent of the total, the deposit is called a deep-seaclay, brown mud, or red clay....
This put a practical limit of around 10 GHz on marine radars, which was also affected by the difficulty in earlier days of producing signals significantly above this frequency. By international agreement two groups of radio frequencies are now allocated for use by civil marine radar systems. One...
The effect of a radiologically hazardous object – a temporary storage site for radioactive wastes in Guba Andreeva – on the radioecological state of its ambient environment is analyzed. Data on the concentration of 137 Cs and 90 Sr in the components of the land and marine ecosystems of ...
marine electrical parts VHF radio for ship Part: marine captain room parts range: 136-172MHZ apply for: marine captain room color: black Material: PE PVC Magnetic key words: marine VHF Power: 55-75W condition: new Packaging and delivery ...
Inland marine coverage is property insurance for property in transit over land, certain types of movable property that may not remain at a fixed location, instrumentalities of transportation (such as bridges, roads, and piers), instrumentalities of communication (such as television and radio towers...
Yet, our knowledge of stress tolerance among marine tardigrade species is very limited and most investigations revolve around species living in moist habitats on land. Here, we investigate desiccation tolerance in the cosmopolitan marine tidal tardigrade, Echiniscoides sigismundi, providing the first ...
材质 MarineVHFradiotelephone 型号 JHS-800S MODEL: JHS-800S Features: Our new 5-inch touch screen controlled Class A VHF radio (JRC model JHS-800S) featuring a uniform, corporate design with manual-free operation. The all-in-one unit (control unit with speaker, radiotelephone and DSC) ...
Marines- members of a body of troops trained to serve on land or at sea Marine Corps Intelligence Activity,MCIA- an agency of the United States Marine Corps that provides responsive and broad intelligence support for the worldwide Marine Corps organization ...