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polarization-changing (一种抗干扰技术) |
变极化 : 39 phrases in 13 subjects |
Air defense | 5 |
Automobiles | 1 |
Chemistry | 1 |
Clothing | 1 |
Desert science | 1 |
Earth sciences | 1 |
Electronics | 7 |
General | 1 |
Metallurgy | 1 |
Oil / petroleum | 2 |
Space | 9 |
Technology | 8 |
United Nations | 1 |