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冷却剂材料
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sodium
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化学元素。元素符号Na,原子序数11,原子量22.98976928,属周期系IA族,碱金属。
理学
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释
sodium
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化学元素,元素符号Na,原子序数11,原子量22.98976928(2),属周期系ⅠA族,碱金属。
Astronomy
全称:sodium。缩写:Na
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Chemistry
>无机化学>无机化学基本概念与无机化合物>释义
sodium
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Purcell-Pound experiment
purchase and sale prices of agricultural products
purchase and sales contract
purchase center
purchase contract
purchase expenditure management
purchase management
Purchase Motivation
purchase of blasting materials
Purchase of silk
purchases amount
Purchase Situation
Purchase Tribute
purchasing agency
purchasing commission
purchasing cost
purchasing decision
purchasing managers' index
Purchasing mode management
purchasing motivation of readers
purchasing of agricultural products
purchasing of health services
purchasing power parity
pure
pure abstraction
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