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HGT 4120-2009 工业氢氧化钙...
CN201521041201.2-污水除氯用的预过滤装置-公开号205294913...
1-s2.0-S0160412018310407-mainContentslistsavailableatScienceDirectEnvironmentInternationaljournalhomepage:www.elsevier.com/locate/envintAirpollutionandhealthcareexpenditure:Implicationfo...
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MSDS说明书(尿素20141201)毒性及健康危害毒性及健康危害侵入途径吸入、食入健康危害本品属微毒类。对眼睛、皮肤和粘膜有刺激作用。尿素尿素中文名:尿素英文名:UREA分子式:CO(NH2)2分子量:60.05浓度:含N46%CASNo.:57-13-6危险等级:本...
CNAS—CL01检测和校准实验室能力认可准则检测和校准实验室能力认可准则((ISO/IEC17025::2005))AccreditationCriteriafortheCompetenceofTestingandCalibrationLaboratories中国合格评定国家认可委员会中国合格评定国家认可委员会二〇〇六...
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