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2、
V type three-level symmetric second-order coherence theory of attosecond polarization beats
阿秒极化拍的V型三能级对称二阶相干理论
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4、
The transitional characteristics of metal V-belt type CVT has been tested.
为验证理论分析的正确性,测试了金属带式无级变速器的瞬态特性.
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