At left—A hydraulic cylinder, showing the steel strut to which it is i f attached at the base and the hose which connects the pipeline to the cylinder chamber. The ventilator is fully opened. Above— view of the glasshouse, showing how the top ventilators are connected at the base.
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https://paperspast.natlib.govt.nz/periodicals/NZJAG19491215.2.33.2
Bibliographic details
New Zealand Journal of Agriculture, Volume 79, Issue 6, 15 December 1949, Page 582
Word Count
49At left—A hydraulic cylinder, showing the steel strut to which it is i f attached at the base and the hose which connects the pipeline to the cylinder chamber. The ventilator is fully opened. Above— view of the glasshouse, showing how the top ventilators are connected at the base. New Zealand Journal of Agriculture, Volume 79, Issue 6, 15 December 1949, Page 582
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