预览版、测试版或其他预发行服务(“预览”)是世纪互联为了在正式发行前获得用户反馈而提供的服务的选择性评估版本。
Preview, beta or other prerelease services (" Previews ") are optional evaluation versions of the services offered by 21vianet to obtain customer feedback prior to general release.
例如，如果这两个本地谓词选择性没有优化器评估的强，怎么办？
For example, what if the two local predicates are not as selective as estimated by the optimizer?
公平而论，这只是评估基于规则的过滤器，而没有针对分布式黑名单做选择性的检查。
In fairness, this only evaluated the rule-based filters, not the optional checks against distributed blacklists.
在方法研发和方法验证过程中应评估方法选择性并在方法应用于真实样品分析过程中持续保证。
Method selectivity should be evaluated during method development and throughout method validation and can continue throughout application of the method to actual study samples.
目的：评估在腺病毒介导下，由蛋白涂层金属支架向局部动脉壁转基因的可行性、效率和选择性。
Objective: to assess the feasibility, efficiency and selectivity of adenovirus mediated gene transfer to local arterial wall by protein coated metallic stent.
目的探讨应用选择性最小平方拟合法无创性评估机械通气病人镇静时呼吸努力程度的可能性。
Objective to investigate the possibility of application of selective least square fitting method to evaluate the respiratory effort of sedative patients mechanically ventilated.
目的：判断选择性动脉造影在胰腺癌术前评估中的价值。
Objective: To study the value of selective arteriography in pre-operative assessment of pancreatic carcinoma.
评估选择性肾动脉造影在冠状动脉造影患者中的可行性、安全性及其临床意义。
Aim To determine the feasibility, safety and clinical significance of selective renal angiography in patients undergoing coronary angiography.
刺网选择性研究是渔具选择性研究领域中的重要部分，其对于渔业管理、资源调查和评估等都是至关重要的。
Size selectivity of gillnet, which is crucial to fisheries management, stock survey and assessment, is a main subject in research on selectivity of fishing gear.
由于Janus -faced在生物特性，为数众多的铜的努力开发效率，是进行选择性的方法评估和生物细胞内铜离子。
Owing to the Janus-faced properties of copper in organisms, numerous efforts have been undertaken to develop efficient and selective methods to assess copper ions in cells and organisms.
本研究评估选择性PCI患者，远距缺血预处理减轻心肌肌钙蛋白I释放的能力。
This study assessed the ability of remote ischemic preconditioning to attenuate cardiac troponin I release after elective PCI.
目的评估声门上型喉癌n 1、N2期行区域选择性颈廓清术的疗效。
Objective To estimate the cure effect of region-selectivity neck dissection in supraglottic larynx cancer (N1? N2).
目的评估选择性肾动脉造影在冠状动脉造影患者中的可行性、安全性及其临床意义。
Objective To determine the feasibility, safety and clinical significance of selective renal angiography in patients undergoing coronary angiography.
目的：评估HTK液和冷晶体含血停搏液在深低温停循环选择性脑灌注下行全主动脉弓替换支架“象鼻”手术中的心肌保护效果。
Objective:To evaluate the myocardial protective effects of HTK on the operation of aortic dissection, through comparison with 1:4 cold blood cardioplegia and HTK cardioplegia.
本篇回顾的目的是要评估以选择性血清素在摄取抑制剂以减缓严重经前症候群妇女经前症状的效果。
The objective of this review was to evaluate the effectiveness and safety of SSRIs for treating premenstrual syndrome.
本篇回顾的目的是要评估以选择性血清素在摄取抑制剂以减缓严重经前症候群妇女经前症状的效果。
The objective of this review was to evaluate the effectiveness and safety of SSRIs for treating premenstrual syndrome.
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