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primary standards of national defense
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primary standards of national defense
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工学
(计量)
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primary standards of national defense
国防最高计量标准
在国防军工系统中具有最高计量特性,由国家国防科技工业计量主管部门考核合格并授权在国防军工系统中进行量值传递的测量标准。
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tree-of-heaven bark
tree of Pythagoras
tree of strategies
tree peony
tree peony garden
tree peony root bark
Tree-plangting as an Obligatory Duty
tree planting auger
tree-planting day
tree-planting problem
tree/plant management
tree polymer
tree pool
tree processing
tree proof
tree proteome
tree representation
tree ring
Tree-ring Dating
tree root
trees
Trees and Crows in Autumn by Wang Hui
trees breeding for forest carbon sink
trees breeding for stress resistance
Trees damage by snow
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