Obscure gastrointestinal bleeding is defined as bleeding of unknown origin that persists or recurs after a negative initial endoscopic evaluation of both the upper and lower gastrointestinal tracts.
来源不明性胃肠出血是指首次上、下消化管内窥镜检查都阴性、原发部位不明的持续或反复性出血。
In this paper, the secondary hydrocarbon generation mechanism of the Upper Paleozoic coal in the South Huabei Basin was studied using a new kind of quantitative evaluation method for gas source rock.
文中利用一种新的气源岩定量评价方法对南华北盆地上古生界煤的二次生烃机理进行了研究。
A quantitative evaluation of beneficial result in conserving water and protecting soil erosion of froest in the upper stream of Miyun reservoir is produced from the information system.
利用该系统对密云水库上游密云县境内水源保护林的水源涵养与防止土壤侵蚀效益进行了定量评价。
In particular, our data provide the upper branches' weight on profit in performance evaluation to allow for the possibility that local branches are partly profit-maximizing institutions.
特别是，我们的数据提供的上分行的利润在绩效评估权重，以便有可能是部分地方分支机构利润最大化的机构。
The upper-limit of the positioning dilution of precision(PDOP) is an important index to design of a navigation constellation and evaluation of its performance.
定位精度因子（PDOP）上限取值是导航星座设计及其性能评价的基本依据。
ConclusionThe above-mentioned radiological evaluation criterion can objectively evaluate the compression degree and the compression improvement effect of upper cervical cord.
结论上述影像学评估标准能客观地评估上段颈髓受压程度和减压改善效果。
Marine diesel is simulated by the upper mass of the system. Proper positions of secondary vibration source are chosen and some points on the lower mass are chosen for error evaluation.
以双层隔振系统的上层质量来模拟柴油机，在下层质量上合理地布置次级振源，选取合适的误差评价点，针对这些点的振动响应实施控制。
Based on the evaluation indices and the function description method, the pointing movement quality of human upper limb was evaluated and the joints angles were fitted.
利用运动质量评定指标和函数描述方法对人体上肢触点运动进行了运动质量评定和关节角度的函数拟合。
With this kind of nail, humeral shaft fractures were fixed by inserting needles through the upper point of olecranon fossa and made clinical evaluation on its effects.
临床采用该钉由鹰嘴窝上方逆行进钉内固定治疗肱骨干骨折，并对其进行评价。
To study the diagnosis and prognostic evaluation of diaphragm function in the patients with upper cervical spinal cord injuries with magnetic stimulated MEP.
研究磁刺激运动诱发电位(MEP)对高位颈髓损伤患者膈肌功能状态的诊断及预后判断价值。
Objective: To study the diagnosis and prognostic evaluation of diaphragm function in the patients with upper cervical spinal cord injuries with magnetic stimulated MEP.
目的：评定磁刺激运动诱发电位（MEP）对高位颈髓损伤患者膈肌功能状态及呼吸功能预后的价值。
When upper endoscopy and colonoscopy are both unrevealing, evaluation of the small bowel is indicated.
当上消化道内窥镜和结肠镜均无发现，小肠检查具有指征。
According to the upper extremity functional evaluation standard set up by hand surgery branch of Chinese Medical Association, 94.6% of fineness was reached.
按中华医学会手外科学会上肢部分功能评定试用标准评定，优良率达94.6%。
According to the upper extremity functional evaluation standard set up by hand surgery branch of Chinese Medical Association, 94.6% of fineness was reached.
按中华医学会手外科学会上肢部分功能评定试用标准评定，优良率达94.6%。
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