Metae fiunt duae, una solida, una cava, ex torno ita perfectae, ut alia in aliam inire convenireque possit et eadem regula laxatio earum aut coartatio efficiat aut vehementem aut lenem in ea vasa aquae influentem cursum.
Two cones are made, one solid, one hollow, and so finished by the lathe that one can enter and fit the other; the same rod, by loosening or tightening them, produces a strong or gentle current of water flowing into the vessels.
final_alignments\Vitruvius_Architecture_Book_9.json