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氢指数
qīngzhǐshù
stresses
gen.
показатель концентрации ионов водорода
math.
показатель pH
tech.
водородный показатель
[不变]氢指数
qīngzhǐshù
oil.proc.
пэ-аш
氢指数:
15 phrases
in 7 subjects
Drilling
1
Electronics
1
General
7
Geophysics
1
Mathematics
1
Oil processing plants
2
Technology
2
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