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杂质浓度 | |
piez. | impurity concentration |
过渡区 | |
desert. | intermediate zone; transition area; transitional area |
forestr. | transition zone |
hydroel.st. | transition region |
oil | transitional |
skiing | transition |
tech. | buffer region; transient region |
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impurity concentration |
杂质浓度: 5 phrases in 4 subjects |
Aviation | 1 |
Electronics | 2 |
Metallurgy | 1 |
Semiconductors | 1 |