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" ' ( 1 2 3 4 6 a b c d e f g h i j k l m n o p q r s t u v w x y z 孫




" ' ( 1 2 3 4 6 a b c d e f g h i j k l m n o p q r s t u v w x y z 孫
Irrigation of a higher paddy field with an Archimedean Screw, 1943
Title : Irrigation of a higher paddy field with an Archimedean Screw, 1943
Topic : Other collections
Year : May 1943
Location : Unknown
Nature : B&W Photo
Support image : Paper
Caption on support : Irrigation –Yunnan; Archimedean screw; E. Harrison. Rubber stamped: ‘The Kingdom Overseas’
Information data : University of Bristol - Historical Photographs of China reference number: co-s111.
Keywords : Cottrell;agriculture