环状胰腺是指胰腺组织环绕十二指肠降段。
Annular pancreas refers to pancreatic tissue enveloping primarily the descending duodenum.
该病目前的诊断标准需要从十二指肠降段取4块活检。
The current standard for diagnosing CD involves obtaining 4 biopsy samples from the descending duodenum.
目的探讨十二指肠降段病变并出血的病因、主要临床表现及胃镜下改变。
Objective To probe into the cause , clinical manifestation and gastroscopy of bleeding of duodenal descending part disease.
目的探讨十二指肠降段病变并出血的病因、主要临床表现及胃镜下改变。
Objective to probe into the cause, clinical manifestation and gastroscopy of bleeding of duodenal descending part disease.
结论：分别从十二指肠降段及球部取4块活检可提高CD的诊断正确率。
Conclusions: We suggest examining 4 biopsy samples from the duodenal bulb and 4 from the descending duodenum to improve diagnostic accuracy of CD.
透视常常显示一个光滑、不对称的十二指肠降段的外在性压迹，伴有或不伴有肠梗阻。
Fluroscopic images often demonstrate a smooth, asymmetric, descending duodenal extrinsic impression, with or without obstruction.
由此得出，降段煤垛与移动抽放相结合的方法是高瓦斯矿井回采工作面瓦斯治理的有效方法。
We can conclude that the method that unites lower-sect coal stack method and mobile drainage method is an effective measure in the control of gas in the working face of high gas mine.
一段时间之后，银行往往指出很多高质量贷款支持证券会价格大降，即使证券按预期分红。
Banks routinely pointed out that many higher-quality loan - backed securities had fallen sharply in value, even when the loans backing the security continued to pay as expected.
在卡南格拉主峡谷中，一位溪降探险者正从一个三段式的、每段都有150英尺高的瀑布上用绳子往下降。
A canyoneer descends by rope through one of Kanangra Main Canyon’s three 150-foot waterfalls.
在给定条件下对压力降模型进行了讨论，计算了单个孔眼段的压力损失。
The pressure drop model is discussed, and the pressure loss for single perforation section is calculated.
利用压缩比与平直段的长度存在补偿效应的结论，从压力分布及压力降的比较中考察其对熔接痕形成的影响。
Using the theory of compensation effect between compress ratio and the length of straight section, the pressure of flow channel were mainly study according its influence on melt line.
介绍了穿流干燥过程中降速段的工艺特点及其数学模型的选择，给出了此干燥过程的数学模型及相关用途。
The technical characteristics of cross flow drying process in reduction rate stage and selection of drying process 'mathematical models are introduced.
本文根据压裂施工停泵后裂缝仍有延伸的问题，提出了一种利用压裂后压降曲线早期段求解裂缝参数的方法。
With consideration of the extension of fracture after shut-in, this paper proposes a method for defermination of fracture parameters using shut-in decline curve.
当水平段出现多相流时会有显著压降。
研究了在降弧段进行高空机动的再入飞行器最优制导律。
An optimal guidance law for reentry vehicle with high altitude maneuvering on downward phase is studied.
据初步研究结果，伊通-舒兰断裂南、北两段的震源应力降与Q值存在差异。
The preliminary study result shows that the two segments in question show differential source stress drop and Q value, which can be explained by the earthquake activity.
本文采用同一模型的基本思路，将其引伸到降速段。
In this paper, the basic ideas of the same model is extended to the period of decreasing drying rate.
其降阶指把电流环时间常数调整到尽量小，低频信号段可等效为普通比例环节。
The intension of reduce rank is that the time constant of current-ring is regulated to the best of minimum, and low frequency signal is equated to common proportional component.
为解决卷烟吸阻及重量稳定性方面存在的问题，本文从理论方面分析了滤棒段压降、重量与烟支段吸阻、重量对整支卷烟吸阻及重量稳定性的影响，并结合实例进行了分析。
From the theories of the stability of weight and resistance of filter rod and short cigarette to the stability of the entire cigarette and integration of the examples was analyzed.
主要湿源为井筒段的淋水加湿、涌水加湿和开采盘区内的喷雾降尘加湿。
The main humidity source is the watering, the water gushing and the spraying for dust control in panel.
用超声波液位计将测流渠段的上下游两断面水位实时测出，再用计算机分时段算出平均水位、水面坡降及流量；
Ultrasonic liquid level gauge used to real-time measure the upper level and tail level of the two sections , then the computer calculated average water level, gradient of water table and discharge;
当两段系统的回收率低于55%时，系统第一段的压降就会随回收率的降低而升高。
When RO system's recycle rate is lower than 55%, the decrease of pressure in the 1st segment would increase against the decrease of recycle rate.
方法：结扎犬前降支近段建立急性心肌梗塞模型。
Methods:Left anterior descending arteries were ligated in 4 dogs.
方法18例心尖球形综合征和36例左前降支冠脉血栓形成导致早期ST段抬高心肌梗死匹配。
Methods Totally 18 consecutive patients with TLVABS who were matched with 36 subjects presenting with acute anterior STEMI due to atherothrombotic left anterior descending coronary artery occlusion.
特点：采用PLC程控，配置日本米亚基ct- 110焊接控制器，三段通电方式，具有电流缓升缓降功能。采用焊接变压器次级反馈控制电流及导通角控制。
Features: PLC programming, equip with Japan Miyachi CT-110 welding control device, three segments electrification method, with current slow increasing and slow dropping function.
根据试验资料确定了悬挂式防渗墙及其前后水平段的渗流临界坡降，给出了管涌险情是否会影响大堤安全的估算公式。
The critical seepage gradients of the cut-off walls are obtained according to the experimental data. The formula for assessing the influence of piping on safety of levee is…
根据试验资料确定了悬挂式防渗墙及其前后水平段的渗流临界坡降，给出了管涌险情是否会影响大堤安全的估算公式。
The critical seepage gradients of the cut-off walls are obtained according to the experimental data. The formula for assessing the influence of piping on safety of levee is…
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