SAPROBIC CLASSIFICATION SYSTEM (BIOLOGICAL WATER ANALYSIS)
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BTBIOLOGICAL ANALYSIS OF WATER + BIOLOGICAL ANALYSIS OF WATERS (HYDROBIOLOGY)
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BTSAPROBIONTS (BIOLOGY)
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UDC574.633*1
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Descriptor GERSAPROBIENSYSTEM (BIOLOGISCHE WASSERANALYSE)
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Descriptor ENGSAPROBIC CLASSIFICATION SYSTEM (BIOLOGICAL WATER ANALYSIS)
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Descriptor FRESYSTÈME SAPROBIQUE (ANALYSE BIOLOGIQUE DE L'EAU)
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Variant ENGCLASSIFICATION/SAPROBIC CLASSIFICATION SYSTEM (WATER ANALYSIS)
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RTNATURAL WATERS/ENVIRONMENTAL MONITORING (ENVIRONMENTAL PROTECTION)