1. He aha ka ʻōnaehana mana hydraulic? ʻO kahi ʻōnaehana hydraulic kahi mea hana piha e hoʻohana ai i ka aila ma ke ʻano he mea hana, hoʻohana i ka ikehu kaomi o ka ʻaila a hoʻopololei i ka mea hoʻokele hydraulic ma o nā valve mana a me nā mea pono ʻē aʻe, me nā mea mana, actuators, control elements, auxilia ...
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