01 Hoʻohu a hoʻokuʻu ʻia ʻo Crane
kalapona, graphite, anode a me nā ʻoihana ʻē aʻe. He ʻeono mau ʻāpana nui: kahi alahaka, ka mīkini hana trolley nui a me ka liʻiliʻi, ka ʻōnaehana suction a me ka hoʻokuʻu ʻana, ʻōnaehana hoʻomaha, ʻōnaehana hoʻoneʻe lepo, a me ka contr ...