由于PD的主要病理生理和发病机制是黑质多巴胺能神经元丧失、纹状体多巴胺(dopam ine,D A)含量降低,而使胆碱能系统的功能相对亢进,造成纹状体D A和乙酰胆碱(A ch)神经递质失衡。
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D/A转换 D/A conversion ; D/A converter ; DAC ; D/A transform
D A DIRECT ADDITIONAL 直航附加费
串行D/A serial
D/A 转换器 D/A Converter
d a m 水坝
D&A 德克 ; 胶·新西兰设计艺术学院
d-a-Galacturonic acid 半乳糖醛酸
absurd d a 不合理的 ; 荒谬的
·2,447,543篇论文数据,部分数据来源于NoteExpress
N-COUNT A DA is a . 地区检察官 [美国英语]
An importer in Sweden asks us to send him a trial delivery for sales on D/A terms.
瑞典的进口商要求我们按照承兑交单条款向他发送试交货的产品。
d—数字(0到9)。
An A is worth four points, a B three points, a C two points and a D one point.
VOA: special.2009.03.05
you'd have a sort of roast dinner with beef and potatoes and vegetables and things like that.
你通常会吃一餐烤牛排和土豆蔬菜一类的食物。
He'd had a very royal accident, he'd broken his leg falling off a horse, and he had a terrible limp.
他出了一场只有王室贵族才会出的事故,从马上摔下来,断了一条腿,腿瘸得很厉害
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