verfeinern | |
gen. | hone; rarefy; refine; subtilize |
chem. | refine; to purify |
econ. | improve |
ed. | purify; enhance |
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refine; to purify | |||
purify; enhance | |||
upgrade | |||
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hone; rarefy; refine; subtilize | |||
improve |
verfeinern : 3 phrases in 2 subjects |
Metallurgy | 2 |
Technology | 1 |