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conservative elements
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conservative elements
Encyclopedia
理学
保守性元素
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conservative elements
保守性元素
在一定时间、空间尺度中保持其基本量、性质、特征不变并与特定指标存在恒定比值的元素。如海洋中某些元素(或者物质)的浓度与海水的盐度或者氯度存在恒定的比值关系。
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radio multi-source
radio music
radiomutant
radiomutation
Radio Nacional Argentina
radio navigation
radio navigational warnings
radio navigation equipment
radio navigation satellite service
radio navigation system
radio navigation technique
radio nebula
radio news
radio news using natural sound and actuality
radio night talk show program
radio noise
radio noise-burst
radio nonthermal brightness temperature
radio nova
radio nova remnant
radionuclide
radionuclide-bearing test
radionuclide examination
radionuclide examination in respiratory system
radionuclide examination of nervous system
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