发明授权
US5542208A Mobile unit for treating soil 失效
移动单位处理土壤

Mobile unit for treating soil
摘要:
A treatment system for aerating, cooling and heating or draining a site such as a golf course green or a playing field. A mobile blower can be connected and disconnected with an underground duct network situated under the site through a suitable valving arrangement so that one blower can be used in servicing a number of sites.
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