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How does THD referee score a bout?
场比赛裁判怎样给分。
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I shot at THD bird but it flew away.
我举枪向鸟射击,可是它飞走了。
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The instructor prepared THD class lesson carefully.
这位讲师细心准备课程。
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Every year the army and thd mavy hold maneuvers for practice.
每年陆军和海浑都举行防空演习。
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The cornerstone of the treatment of THD is antithyroid therapy.
甲亢心的主要治疗是抗甲状腺治疗。
1. 总谐波失真指输出信号比输入信号多出的谐波主要成份,由系统不完全线性造成。所有附加谐波电平之和称为总谐波失真,与频率有关。一般说来,1000Hz频率处的总谐波失真最小,不少产品均以该频率的失真作为它的指标。