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Background and ObjectiveVitiligo is a kind of disease characterized by the depigmentation of the skin and hair because of acquired melanocytes damage. At present, the pathogenesis of vitiligo remains unclear, but many domestic and abroad researches have proved that vitiligo may be related with heredity, immunity and nerval elements.

一、研究背景和目的白癜风是一种获得性黑素细胞破坏所致皮肤和毛发色素脱失，其发病机制目前尚不清楚，国内外大量研究表明，该病发病机制可能与遗传、免疫、神经等方面有关。

However, the other important mechanism of functional orthopedic treatment, which is neuromuscular rebuilding, is unclear yet.

神经肌肉变化的研究，目前尚不清楚。

Having weighed up the arguments on both sides, it seems there are good eco nomic and ecological reasons for sources of energy other than unclear power.

权衡核能赞成者和反对者的论据之后，从经济和生态两方面考虑，似乎有充分的理由认为应选用其他能源。

Whether it's personally offensive, unclear, incomplete, pointless, exaggerated, or nonactionable—and whether it comes from superiors or subordinates—low-quality feedback can be toxic if it's taken to heart.

不管这些来自于你的上司或下属的反馈意见是人身攻击，还是表述不清、表达不完整，乃至毫无意义、夸大其词，或者根本不具可操作性，如果你将这些没有任何价值的反馈意见放在心上，很可能会造成伤害。

Although numberous experiments and clinical studies on DO appeared,thereare still some questions unclear,including long duration of treatment and incidence of complications.

尽管牵张成骨技术用于矫治颅颌面先天发育畸形和获得性骨节段缺损已获得成功，但是它需要较长的总体治疗时间，给患者带来不便，而且有感染、骨愈合不良甚至骨折的危险。

In particular, it has remained unclear how oogamy arose from isogamy, a more simple form of sex in which ery similar reproductie cells take on different "mating types" but do not differentiate as distinct sperm and egg.

尤其是异配生殖如何由同配生殖转化而来，我们对此还懵懵懂懂。同配生殖是一种更为简单的结合形式，在此过程中，非常相似的生殖细胞不管三七二十一地就与不同的配子结合，都不分这些配子是&公&是&母&。

Thyroid associated ophthalmopathy is an organ special autoimmune disorder, of which the pathogenesis is still unclear.

摘要甲状腺相关眼病是一种器官特异性自身免疫性疾病，确切的发病机制尚不清楚。

Percy Weasley was made the personal assistant of Mr. Crouch . It is unclear if this was actually Crouch 's intention--he, after all, didn't even remember Percy 's name, and mentioned that Percy was overeager.

珀西·韦斯莱曾是克劳奇先生的私人秘书，但不能肯定这是否是克劳奇自己的意愿，毕竟，他甚至根本记不住珀西的名字，也提到过珀西太过于热切了。

Percy Weasley was made the personal assistant of Mr. Crouch. It is unclear if this was actually Crouch's intention--he, after all, didn't even remember Percy's name, and mentioned that Percy was overeager.

珀西韦斯莱曾是克劳奇先生的私人秘书，但不能肯定这是否是克劳奇自己的意愿，毕竟，他甚至记不住珀西的名字，也提到过珀西太过于热切。

While the causes of individual building failures remain unclear, such complaints underscore widespread concerns about the quality of much of China's infrastructure amid an un- paralleled but only patchily supervised national building surge.

尽管建筑物倒塌的具体原因尚不明朗，但网上的这些抱怨，突显人们对于中国许多基础设施质量的普遍担忧。近年来，中国全国投入空前规模建设高潮，但质量监督并不平均。

You can snipe the second and third union leaders from this position.

您可以鹬第二和第三工会领袖从这一立场出发。

Aiming at the currently shortage of XML streams quality detecting, this paper proposes a new forecasting method of XML streams quality by least squares support vector machines, which is used the method of XML keys' vector matrix as windows, and vector product wavelet transform to multilevel decompose and refactor the XML streams series, that can fulfill real-time checking demand of XML quality, and ensure constraint, consist- ency and integrality. For even more adapting net load, it proposes a control strategy by weight and adaptive adjustment to ensure XML streams quality.

针对当前XML数据流质量检测存在的不足，提出构建XML键的矢量矩阵作为窗口，利用矢量积小波变换多级分解与重构XML数据流，再结合最小二乘支持向量机对XML数据流质量进行预测的一种方法，满足XML数据流质量重构时实时检测的要求，保证XML数据的约束性、一致性与完整性；为了更好的适应网络负载，采取加权与自适应窗口调整等调度策略充分保证XML数据流的质量检测。