Nā huahana

ʻO ka wehewehe pōkole:

Hana ʻia me ka keleawe papa hana ʻoihana, ʻoi aku ke kūpaʻa o kēia valve, ʻoi aku ka maikaʻi no ka kuʻi ʻana, a hiki ke hoʻohana ʻia me ka ʻaila, diesel fuel, kerosene oil, natural gas, air etc. me nā papahana e pili ana i ka wai inu a i ʻole nā ​​papahana wai ʻē aʻe.
Ua pili ia ma na kahua he nui: Irrigation controls (māla, mahiʻai, etc.), wai mana (pipeline, artificial river etc. and air controls (lab, factory, etc.). pū kekahi.