“land transportation frequency bands”的概念、定义、翻译、参考文献-科学参考

单词	land transportation frequency bands
释义	land transportation frequency bands [`land ´tranz·pǝr¦tā·shǝn `frē·kwǝn·sē ´banz] ^{COMMUNICATIONS} A group of radio- frequency bands between 25 megahertz and 30,000 megahertz allocated for use by taxicabs, railroads, buses, and trucks.
随便看	hydrogen ion hydrogen ion concentration hydrogen ion exponent hydrogen laser hydrogen line hydrogen loss hydrogen maser hydrogenolysis hydrogenous hydrogen overvoltage hydrogen oxide hydrogen peroxide hydrogen phosphide hydrogen-reduced powder hydrogen selenide hydrogen star hydrogen sulfide hydrogen tellurate hydrogen thyratron hydrogeochemistry hydrogeology hydrograph hydrographic basin hydrographic chart hydrographic cruise

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