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国家化学计量标准
释义
国家化学计量标准
Encyclopedia
工学
〔化学计量基本概念〕
释
national chemical measurement standard
国家化学计量标准
由国家计量行政部门考核、批准,具有确定的量值或量值范围和相关联的不确定度,用于实现化学成分量、物理化学特性量等的单位或量值,检定或校准其他化学计量标准或工作计量器具,对社会实施计量监督并具有公正作用的一类国家计量标准。
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local frame of reference
local function
local functor
local galaxy
local gauge transformation
local gauge transformation group
local geochemical anomaly
local geometry
local global principle
local-global principle
local global Torelli problem
local-global Torelli problem
local god King Zhang
local government
Local Government Act(1929)
local government agreement
local government annexation
local government debt
Local Government in China Under the Ch’ing
local government-run school
local governments' and public schools' primary responsibility for children's education of rural migrant workers
local government–run school
local ground field
Local Group
local group
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