下导管

The performance of the CNGs, including transmission efficiency, neutron flux, flux spectrum, divergency, uniform and gravity effect, have been analysed technically.

在满足导管出口中子束的均匀化效果前提下，模拟计算出弯导管后的直导管的最佳长度。

The liquid transport takes place in each downcomer through a plurality of discharge apertures (32) onto a loaded tray.

在每个下导管中液体穿过多个排放孔(32)输送到载荷板。

Under transthoracic echocardiography, electrode catheters positioned intracardiac and target ablation were performed with the permentnent pacemaking catheter of left subclavian vein and the ablation catheter of right femoral vein.

在经胸心脏彩超引导下，采取"多切面观察"、"导管运动中观察"，密切结合心内电生理定位，尝试左锁骨下静脉永久起搏导管和右股静脉消融导管的心内定位和靶点消融。

Results As the results, there was 6 patients with the ILVT cycle length of (286±38)ms. The indicaed site of EA by noncontact mapping was at the middle septum in 4 patients, and at the inferior septum in 2 patients. Mean time of EA was (48.6±32.8)ms before onset of the surface QRS. The length of conduction pathway was (2.6±0.9)cm. The ablation catheter mapping showed perfect match in at least 11 of 12 leads at the EX (≥11/12), but not at the EA (≤10/12) with pace mapping during sinus rhythm. Purkinje potentials were mapped at EA and CP in all cases, but only one case at EX, and diastolic potentials were mapped at EA in 2 cases during ILVT. All cases were successfully ablated by area ablation at EA or/and line ablation at CP during sinus rhythm. None suffered a recurrence during (12±6) months follow-up.

6例ILVT周长为(286±38)ms，非接触标测显示4例激动起源位于中间隔，2例位于下间隔，EA较体表QRS波提前约(48.6±32.8)ms，传导径路长约(2.6±0.9)ms.6例病人在窦性心律下消融导管起搏标测12导联QRS形态与ILVT相匹配(≥11/12)处位于EX，而非EA(≤10/12)见正文。6例病人在室性心动过速期间消融导管于EA和CP处标测到PP，2例于EA标测到DP，1例于EX标测到PP.6例病人在窦性心律下于ILVT起源部位行片状或／和传导径路作线性消融均获成功，随访(12±6)月，未见复发。

Mean time of EA was (48.6±32.8)ms before onset of the surface QRS. The length of conduction pathway was (2.6±0.9)cm. The ablation catheter mapping showed perfect match in at least 11 of 12 leads at the EX (≥11/12), but not at the EA (≤10/12) with pace mapping during sinus rhythm. Purkinje potentials were mapped at EA and CP in all cases, but only one case at EX, and diastolic potentials were mapped at EA in 2 cases during ILVT. All cases were successfully ablated by area ablation at EA or/and line ablation at CP during sinus rhythm. None suffered a recurrence during (12±6) months follow-up.

6例ILVT周长为（286±38）ms，非接触标测显示4例激动起源位于中间隔，2例位于下间隔，EA较体表QRS波提前约（48.6±32.8）ms，传导径路长约（2.6±0.9）ms.6例病人在窦性心律下消融导管起搏标测12导联QRS形态与ILVT相匹配（≥11/12）处位于EX，而非EA（≤10/12）见正文。6例病人在室性心动过速期间消融导管于EA和CP处标测到PP， 2例于EA标测到DP， 1例于EX标测到PP.6例病人在窦性心律下于ILVT起源部位行片状或/和传导径路作线性消融均获成功，随访（12±6）月，未见复发。

Methods Three hundred cm-long ileus tube was installed into jejunum by nasal cavity under radiophotography observation in 25 cases with recurrent postoperative adhesive ileus,ileus tube was impulsed by enterokinesia to ileum end to relieve adhesive ileus and conduct internal intestinal arrangement.

25例术后反复黏连性小肠梗阻患者，X线监视下经内置金属导丝的引导作用将300 cm长的肠梗阻导管经鼻置入空肠屈氏韧带20 cm以远，即刻小肠内抽吸减压，导管前气囊充水形成水囊，模拟食团在肠蠕动的推动下在小肠内移行，带动导管边吸引减压边向小肠远端前行，到达梗阻的直接上部抽吸减压或通过黏连部至回肠末端全小肠减压，解除肠梗阻。

objectiveto explore the drain way to tear with inferior lacrimal passage ruined critically.methodsthe special silicon tube whose bore 1mm and diameter 2mm was inserted between conjunctival sac and nasal vestibule,the tube was placed under the soft tissue of bucco-nasal groove and in the surface of the protrusion of upper jaw bone.resultsthere were 32 patients who undergone tube above five years.one patient of them was pulled out the tube because of papilloma hyperplasia,the other patient was pulled out the tube with the tube slide below,and the rest 30 patients kept the drain well and co

目的探讨下泪道破坏严重时泪液引流途径。方法在结膜囊-鼻前庭间安置一个内径1mm、外径2mm的特制硅胶导管，此管置于鼻颊沟软组织下，上颌骨前突表面。结果治疗32例，观察5年以上，其中1例因结膜乳头状瘤增生而拔管，1例因导管下滑而拔管，30例引流良好，病人亦能耐受。本文就引流机制、并发症、机体耐受问题和操作进行了详细地讨论。结论泪道外插管是下泪道严重损害时泪液引流的一种较好的解决方法。皮下；结膜鼻腔造瘘术；硅胶导管

METHODS: The location of 65 consecutive patients with Wharton's duct calculus was analyzed by bimanual examination of the floor of month and bite film of the mandible. Of 65 patients, 57 had the stone removed via intraoral duct incision or sialoendoscopy, 8 by submandibular gland excision. After operation, the shape and size of the calculus were observed and measured.

对连续就诊的65例下颌下腺导管结石患者通过口底双合诊和下颌横断片判断结石的位置，手术取石，其中57例经口内直接切开导管取石或内镜辅助下取石，8例行下颌下腺切除术后取石，观察、测量术后所取结石的形状和大小。

Methods insert the stomach tube nasal cavity, with the help of intubating ferceps, take the stomach tube out of mouth cavity from the posterior wall of dysphagia, insert trachea catheter (cid 7.0~7.5) to esophagus, under the help of trachea catheter, insert the stomach tube to esophagus then take the trachea catheter out of the esophagus and vertical, cutting off, in the course of into esophagus.

经鼻腔插入胃管，用插管钳将胃管从咽后壁前取出口腔外，用id 7.0～7.5的气管导管插入食管，在气管导管诱导下将胃管经气管导管插入食管，然后将胃管向食管内送进，同时将气管导管退出，将胃管置入相当合适的深度后，固定胃管。

Patients were hyperventilated (PaCO2, 30± 2 mm Hg) after baseline LCSFP was obtained via thesubarachnoid catheter.

通过蛛网膜下导管获得腰椎脑脊液压力基础值后对患者进行过度通气(PaCO2， 30± 2 mm Hg)。

I didn't watch TV last night, because it .

昨晚我没有看电视，因为电视机坏了。

Since this year, in a lot of villages of Beijing, TV of elevator liquid crystal was removed.

今年以来，在北京的很多小区里，电梯液晶电视被撤了下来。