The return - to - zero protection circuit comprising one op - amp and two NAND's raises the safety in use.

用一片运算放大器和两个与非门组成回零保护电路,提高了临床使用的安全性.

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The mutations are performed by quantum non - gate , which increase the diversity of particles.

用量予非门实现变异, 提高种群多样性.

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In TTL NAND circuit, a phase inverter with its output circuit changed to an open collector.

在TTL“与非”门电路中, 输出级改用集电极开路的一种反相器.

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A logic circuit that produces an output inverse to that of an OR gate.

或非门,反或门:逻辑原件,产生输出端转变到“或”门.

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Objective : To evaluate the value of SAAG in diagnosis of non portal hypertension ascites.

目的: 探讨血清腹水白蛋白梯度(SAAG)诊断非门脉高压性腹水的价值.

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