请输入您要查询的英文单词:
单词
ultravacuum
释义
ultravacuum
ultravacuum
(
ˌʌltrəˈvækjʊm; ˌʌltrəˈvækjʊəm
)
n
1.
(General Physics) an extremely high level of vacuum
2.
(General Physics) a machine or device for creating such a vacuum
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更新时间:2025/3/20 21:40:18