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单词
ultravacuum
释义
ultravacuum
in British English
(
ˌʌltrəˈvækjʊm
,
ˌʌltrəˈvækjʊəm
)
noun
physics
1.
an extremely high level of vacuum
2.
a machine or device for creating such a vacuum
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drainage
drainage area
drainage basin
drainage channel
drainage ditch
drainage holes
drainage tube
drain blood
drainboard
drained
drained of colour
drainer
draining
draining board
draining-board
draining spoon
drainlayer
drain off
drainpipe
nori
noria
noricum
noriega
norimon
no risk
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更新时间:2026/4/3 8:24:05