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内充气正比计数法
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内充气正比计数法
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内充气正比计数方法
释
internal gas proportional counting method
内充气正比计数法
采用工作在正比条件下的内充气正比计数管方法实现气体状态或可转化为气态的放射性核素活度(或单位体积活度)绝对测量的技术方法。
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left regular semigroup
left remainder
left representation
left representation module
left representative
left representative system
left residual
left resolution
left reversibility
left reversible semigroup
left Riemann integral
left-right axis
left right correlation
left-right correlation
left/right hand spinors
(left,right) ideal of an algebra
left (right) parametrix
left-right points combination,left-right points association
left (right) serial ring
left ring
left R module
left R-module
left rotation
left satellite
left screw
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