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ISO/TS 24520-2017 有關(guān)飲用水供應(yīng)系統(tǒng)和廢水系統(tǒng)的服務(wù)活動(dòng)--危機(jī)管理--技術(shù)方面的良好實(shí)踐 Service activities re...2023-12-13

BS EN 16775-2015 專業(yè)活動(dòng) 專業(yè)服務(wù)的一般要求 Expertise activities. General requirements for expertise servic...2023-09-21

ASTM D6323-2019 有關(guān)廢棄物管理的媒介的實(shí)驗(yàn)室二次抽樣指南 Standard Guide for Laboratory Subsampling of Media ...2023-08-01

BS ISO 18639-4-2018 PPE ensembles for firefighters undertaking specific rescue activities. Gloves2023-07-21

ASTM E2239-2020 Standard Practice for Record Keeping and Record Preservation for Lead Hazard Activities2023-07-14

DIN EN 1384-2017 Helmets for equestrian activities; German version EN 1384:20172023-07-04

北方的發(fā)展活動(dòng) 東部煤田DEVELOPMENT ACTIVITIES IN NORTH EASTERN COALFIELDS2021-09-09

Impact of Human Activities on Depositional Process of Tidal Flat in Quanzhou Bay of China2020-11-11

HISTORICAL DESERTIFICATION PROCESS IN HEXI CORRIDOR, CHINA2020-11-10

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