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单词
caving ground
释义
caving ground
caving ground
[
′kāv·iŋ ‚grau̇nd
]
(mining engineering)
Rock formation that will not stand in the walls of an underground opening without support such as that offered by cementation, casing, or timber.
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b-52 close air support enhancement
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b-61 bomb
英语词典包含2567994条英英释义在线翻译词条,基本涵盖了全部常用单词的英英翻译及用法,是英语学习的有利工具。
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更新时间:2025/2/7 19:32:48