1. ʻO ka boom maʻamau, ka hoʻonui ʻia ʻana o ka excavator, ka boom lōʻihi (me ka boom hoʻonui ʻia ʻelua ʻāpana a me ka boom hoʻonui ʻekolu ʻāpana, ʻo ka hope ka boom wāwahi). 2. ʻO nā bākeke maʻamau, nā bākeke pōhaku, nā bākeke i hoʻoikaika ʻia, nā bākeke ʻauwai, nā bākeke pahu, nā bākeke pale, nā bākeke hoʻomaʻemaʻe, nā bākeke tilt, th...
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