... nonnegative definite matrix 非负定矩阵 nonnegative definite 非负定的 nonnegative form 非负形式 ...
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令人啼笑皆非的是，这种控制计划的成功要对疟疾的卷土重来负一定的责任。
Ironically the success of the control programs is partly to blame for the resurge nce of malaria.
令人啼笑皆非的是，这种控制计划的成功要对疟疾的卷土重来负一定的责任。
Ironically the success of the control programs is partly to blame for the resurgence of malaria.
采用过滤阴极真空电弧技术并施加一定的衬底负偏压，在P（100）单晶硅片上制备出四面体非晶碳薄膜。
Tetrahedral amorphous carbon (ta-C) films have been deposited on P-type (100) polished c-silicon wafer with different substrate negative bias by filtered cathodic vacuum arc technology.
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