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Priority to JP1981087957UpriorityCriticalpatent/JPS5932594Y2/ja
Publication of JPS57200561UpublicationCriticalpatent/JPS57200561U/ja
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Publication of JPS5932594Y2publicationCriticalpatent/JPS5932594Y2/ja
Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
Y02A20/00—Water conservation; Efficient water supply; Efficient water use