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ISO/IEC 17991-2021 信息技術(shù)--辦公室設(shè)備--數(shù)據(jù)掃描設(shè)備生產(chǎn)力數(shù)據(jù)的測量方法 Information technology — Off...2024-01-03

GB/T 21203-2018 信息技術(shù) 辦公設(shè)備數(shù)字式復(fù)印機(jī)復(fù)印生產(chǎn)力的測量方法 Information technology—Office equip...2023-08-26

GB/T 38098-2019 廢棄電器電子產(chǎn)品拆解處理資源產(chǎn)出率評價(jià)方法 Evaluation methodology of disassembly resource pr...2023-08-24

GB/T 40958-2021企業(yè)生產(chǎn)力評價(jià)規(guī)范Evaluation specifications of enterprise productivity2022-03-14

Scenario analysis of low carbon development in Tianjin, China2020-12-06

Simulating the vegetation-producing process in small watersheds in the Loess Plateau of China2020-11-22

Effects of soil and water conservation and its interactions with soil properties on soil productivit2020-07-08

Water-Saving and High-Yielding Irrigation for Lowland Rice by Controlling Limiting Values of Soil Wa2020-07-08

Determination of coal mine mechanization using fuzzy logic2020-06-12