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to phrases
天底
tiāndǐ
econ.
zero
oil
nadir
space
nadir
(天文学中指天球上地平圈的两个极点之一)
天底:
103 phrases
in 19 subjects
Air defense
2
Automobiles
7
Aviation
3
Chemistry
1
Drilling
1
Earth sciences
1
Electronics
4
Explosives and Explosive Ordnance Disposal
5
General
4
Metallurgy
2
Nuclear physics
1
Oil / petroleum
4
Remote sensing
4
Space
14
Sports
1
Technology
44
Telecommunications
2
Textile industry
2
Wind Energy
1
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