I loko o ke aupuni o nā ʻōnaehana hydraulic, ua puka mai nā mea hoʻoheheʻe kaʻa e like me nā hero unsung, e hāʻawi ana i nā hopena hilinaʻi a me nā kumu kūʻai no nā ʻoihana like ʻole.ʻO kēia mau mea hana maʻalahi, e pili ana i kahi kumumanaʻo maʻalahi akā akamai, ua loaʻa i ka kaulana no ko lākou pono, lōʻihi, a me ka hiki.
Heluhelu hou aku