In contrast, NAA is nearly specific for Canavan disease.

相比之下，萘乙酸几乎是专门针对卡纳万病的。

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Decreased NAA concentrations found via magnetic resonance may be an indicator of brain dysfunction or loss of neurons.

通过磁共振发现，乙酰天冬氨酸浓度降低是脑功能损害或神经元缺失的信号。

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The only glimmer of hope was the outcome of experiments being made in England and the US to mate the Rolls-Royce Merlin engine to the airframe of the North American Aviation (NAA) P-51.

现在，最后一丝希望寄托在英国和美国同时进行的一项实验结果上，那就是为北美航空公司(NAA)设计的P - 51战斗机装上劳斯莱斯公司设计的“灰背隼”引擎。

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In 2004 the Key Stage 3 English results were eventually issued three months late - after an extended deadline had been missed - and the then head of the NAA resigned.

BBC: Delays hit pupils' test results