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单词
power shovel
释义
WordReference Random House Unabridged Dictionary of American English © 2024
pow
′
er shov′el,
Mining, Civil Engineering
any self-propelled shovel for excavating earth, ore, or coal with a dipper that is powered by a diesel engine or electric motor. Cf.
shovel
(def. 2).
1905–10
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更新时间:2025/12/11 1:18:45