GB - Chinese national standards

Technical requirements for stratospheric airship—Part 2:Propulsion system

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Technical requirements for stratospheric airship—Part 3:Energy system

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Measurement method for soot emissions from aircraft engines

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General principles for assessment of green mine

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Biaxial stretching polylactic acid film

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Test method for determination of total fluorine in biodegradable materials and plastics

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Bio-manufactured lactide

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Molecular in vitro diagnostic examinations—Specifications for pre-examination processes in metabolomics in urine,venous blood serum and plasma

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Assay method of glucose oxidase activity

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Assay method of PfAgo endonuclease activity

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