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radioactive reference source
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radioactive reference source
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radioactive reference source
放射性参考源
在国家认可的一级基准测量仪上,通过直接或间接测定,并密封在标准容器内的放射源。
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Thelma and Louise
the loading of metallic nanoclusters
The loan shark
The local scholar
thelodonts
The Lofty Message of Forests and Streams
The Logical History of Pre-Qin Period
the logic of policy deliberation
the logic of professional competence development
the London coal smog event
The London Plan
The Lonely Crowd
The Lone Swan
the longan lanternfly
the long couplet of Great View Building in Kunming
the Longguang Literary Society
The Long March
the long-nosed elder-brother
the Longquan Poets’Club
The Longting Park of Kaifeng
Thelon River
The Lord of the Rings(1-3)
The Lost Generation
The Lost Poems of Tianqi and Chongzhen Dynasties
The Lost Salt Gift of Blood
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