Most of these are authored by what appear to be non-native English speakers. So, the most likely explanation is a translation issue.
In engineering literature from Russia from the 1960s, one sometimes finds references to a ‘water goat’ in papers that are otherwise about heavy machinery. It turns out this is a twice-translated rendition of ‘hydraulic ram’.
In engineering literature from Russia from the 1960s, one sometimes finds references to a ‘water goat’ in papers that are otherwise about heavy machinery. It turns out this is a twice-translated rendition of ‘hydraulic ram’.