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Yet, it remains unclear whether these two important players and the therapies that target them are mechanistically linked.

然而，仍然不清楚这两者之间的联系。

It is unclear whether import and export are mechanistically similar, but evidence suggests that numerous pathways may be involved.

还不清楚是否输入和输出在机制上是类似，但是证据表明其中涉及到多种通路。

The historical origin of Vajrayana is unclear, except that it coincided with the spread of the mentalistic schools of Buddhism.

金刚乘除了与佛教的灵性学派发展相符之外，它的历史起源并不清楚。

How that might work is unclear when over Iraq "the United Nations is impotent, the Europeans cannot agree among themselves, and the Americans act alone messianically," says Kouchner.

这个认知又该如何运转，仍是个问题，尤其是在伊拉克问题上&联合国是无能的，欧洲国家内部无法统一，而美国则像救世主似的单独行动&，库施纳说，&当欧洲和美国合作时，才是有效的。&

In recent studies, the mutations in BMPR-Ⅱand/or misexpression of this gene were found in primary pulmonary hypertension, as well as in a number of cancers. However, the transcriptional regulation of this gene was still unclear.

近年来更是发现BMPR-Ⅱ基因突变或表达异常与家族原发性肺动脉高血压和多种肿瘤的发生和转移有关，然而有关BMPR-Ⅱ基因表达的调控目前所知甚少。

More recently, however,non-chlamydia trachomatis and non-mycoplasm NGU has been accounted for 50% of the total of NGU. Most patients with recurrent symptomatic or persistent NGU receive negative test results for chlamydia trachomatis and mycoplasm, and the cause of such NGU is unclear.

在临床上常见的是迁延不愈以及衣原体、支原体均为阴性的NGU患者，对于该类患者的治疗已成为性病学上较为棘手的问题，并引发了人们对于其他病因研究的兴趣。

More recently, however,non-chlamydia trachomatis and non-mycoplasm NGU has been accounted for 50% of the total of NGU. Most patients with recurrent symptomatic or persistent NGU receive negative test results for chlamydia trachomatis and mycoplasm, and the cause of such NGU is unclear.

NGU的病原体多种多样，过去多认为主要是沙眼衣原体和支原体，但是近来调查发现非衣原体非支原体性NGU可以占到NGU总数的一半以上。

Estrogen was reported to upregulate Cx43 expression in rat uterine myometrium; however, the mechanism remains unclear.

有报导指出雌激素可增加子宫肌膜层的Cx43表现，但作用机制仍不明确。

It is unclear to what extent decisions to withdraw from projects result from the delays caused by the NEPA litigation.

这种从工程中撤出的决定在多大程度上是由《国家环境政策法》起诉引起的拖延所造成的，还不大清楚。

Vitamin E and quercetin are both effective anti-oxidant, but it is still unclear whether VE and quercetin can protect nerval system of mice through crossing placenta barrier and blood-brain barrier.

维生素E和槲皮素都是有效的抗氧化剂，但VE和槲皮素是否可以通过胎盘屏障和血脑屏障对子代小鼠的神经系统产生保护作用，目前还不清楚。

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。