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- 2019-05-24 ISO/TS 19807-2 "Nanotechnologies -- Magnetic nanomaterials -- Part 2: Specification of characteristics and measurements for nanostructured superparamagnetic beads for nucleic acid extraction"
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GB/T 22380.3-2019
燃油加油站防爆安全技术 第3部分:剪切阀结构和性能的安全要求
Explosion protected safety technique of the petrol filling station—Part 3:Safety requirements for construction and performance of shear valves
GB/T 38261-2019
Nanotechnology—Determination of silver contents in biological samples—Inductively coupled plasma mass spectrometry
GB/T 38259-2019
Information technology—General specification for virtual reality head mounted display device
GB/T 38258-2019
Information technology—Virtual reality application software basic requirement and test method





