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normal pH value | |||
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rate | |||
normal value | |||
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normal value | |||
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normal beta |
正常 pH 值 : 26 phrases in 12 subjects |
Automobiles | 1 |
Aviation | 1 |
Commerce | 1 |
Economy | 1 |
Electronics | 1 |
Explosives and Explosive Ordnance Disposal | 1 |
Mathematics | 1 |
Metallurgy | 1 |
Oil / petroleum | 2 |
Soil science | 2 |
Statistics | 1 |
Technology | 13 |