“Thoraeus filter”的概念、定义、翻译、参考文献-科学参考

单词	Thoraeus filter
释义	Thoraeus filter [`thȯr·ē·ǝs `fil·tǝr] ^NUCLEONICS A primary radiological filter of tin, combined with a secondary filter of copper to absorb the characteristic radiation of the tin and a third filter of aluminum to absorb the characteristic radiation of the copper; in the range of 200 to 400 kilovolts, such a filter hardens x-rays more efficiently than the usual combination of copper and aluminum.
随便看	internal stress internal table internal thread internal transmittance internal vibrator internal wave internal work international ampere international analysis code international angstrom international atomic time international broadcasting international cable code international call sign international candle international code signal international control frequency bands international control station International Critical Tables international date line international ellipsoid of reference international fixed public radio communications service International Geophysical Year international gravity formula international henry

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