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point segment
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  “point segment”译为未确定词的双语例句
     During building 2D model, I use the concepts of point, segment, line and plane, the segment can be formed from points, then line can be formed from segments, the closed curved plane can be obtained by around lines, and finally the 2D model can be built by closed curved plane;
     在二维建模中,引用点、段、线、面的概念,即由点形成段,由段形成线,由线围成封闭面,封闭面构建成二维模型; 对表示二维地层和断层的界面线,用线性拟合表示非光滑性地层或断层面,用分段三次样条拟合表示光滑性地层或断层面,恰当地表达了二维界面的变化特点。
短句来源
     Based on this concept the optimal design variables can be solved by linear equations of heat balance of each pinch point segment.
     基于此概念用各狭点区段的热平衡式构成线性方程组求解最优设计变量.
短句来源
  相似匹配句对
     On Derivative Existing of Segment Function at Deviding Point
     分段函数在分段点处的可导性研究
短句来源
     Access Point
     无线接入点
短句来源
     HOT POINT
     热点问题
短句来源
     Core-point Searching and Segment Features Extraction in the Fingerprint Auto-recognition
     指纹自动识别中的中心点搜索和特征分块抽取方法
短句来源
     not by line segment.
     肌肉拉力线应用射线来标示;
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  point segment
In the end, the validation rested on average travel times by time point segment and variability of travel times by segment.
      
It consists in grouping recursively sets of lined up points in connection with distance criterion point-segment.
      
Angle is assumed to be not existed, since the length of point segment is usually very short.
      


Multiple-effect evaporation can be classified as a variable hot and cold sink system. The minimum utility of this kind of system must bet he case where multiple pinch points occur. Based on this concept the optimal design variables can be solved by linear equations of heat balance of each pinch point segment. The algorithm is fast and steady. A way to raise the log-mean temperature difference of heat exchanger is to increase the solvent content in the bottom of last stage with setting an auxilliary flash...

Multiple-effect evaporation can be classified as a variable hot and cold sink system. The minimum utility of this kind of system must bet he case where multiple pinch points occur. Based on this concept the optimal design variables can be solved by linear equations of heat balance of each pinch point segment. The algorithm is fast and steady. A way to raise the log-mean temperature difference of heat exchanger is to increase the solvent content in the bottom of last stage with setting an auxilliary flash drum so as to reduce the BPR(boiling point rising). As far as furfural is concerned, the patterns of triple-effect evaporation of low-high-medium and medium-high-low areb etter than that of low-medium-high, in the sense of utility cost and log-mean temperature difference; and the quadri-effectevaporation is unnecessary. These were worked with MULTI and FURSE computer programs developed by the authors.

多效蒸发系统属于可变冷、热源系统,此类系统在出现多狭点时达到最小外界供热和取热.基于此概念用各狭点区段的热平衡式构成线性方程组求解最优设计变量.此方法简单、快速、数值稳定性好.适当提高最后一级蒸发器的液相溶剂含量,并相应提高压力,可以提高换热器的平均温差.此时需增设一台辅助蒸发器,以减轻汽提塔负荷.对于糠醛精制,三效蒸发的低-高-中或中-高-低方案优于低-中-高方案.四效蒸发不必要.开发了MULTI和FURSE软件供糠醛装置分析.

Purpose To evaluate the value of 4 hour delayed 99m Tc MIBI myocardial tomography in assessment of myocardial viability Methods The routine rest and 4 hour delayed 99m Tc MIBI tomographies were performed in 30 patients with coronary artery disease (CAD) Ten of them received revascularization therapy The routine rest 99m Tc MIBI tomography was performed once more in these 10 patients 35 6±19 2 days after the operation The left ventricle wall was divided into basal anterior, apical...

Purpose To evaluate the value of 4 hour delayed 99m Tc MIBI myocardial tomography in assessment of myocardial viability Methods The routine rest and 4 hour delayed 99m Tc MIBI tomographies were performed in 30 patients with coronary artery disease (CAD) Ten of them received revascularization therapy The routine rest 99m Tc MIBI tomography was performed once more in these 10 patients 35 6±19 2 days after the operation The left ventricle wall was divided into basal anterior, apical anterior, anteroseptal, posteroseptal, anterolateral, posterolateral, inferior, posterior segments The four point scale was used for semiquantitative evaluation of radionuclide distribution (RD) in the segments (3=normal uptake, 0=severe reduction or nonuptake) Results The results showed that in 30 patients, 126(46 7%) segments manifested abnormal RD in routine rest imagings and 105 (38 9%) in 4 hour delayed imagings There were 93 segments scored≤1 in routine rest imagings, 36 4% of zero point segments and 53 1% one point segments elevated to 1 by 4 hour delayed imagings Comparing with post revascularization treatment imagings, the positive predicting value, negative predicting value and predictive accuracy of delayed imaging for evaluating myocardial viability were 84 2%, 90 0% and 87 2%, respectively There was good concordance between the results of delayed imaging and post treatment imaging (χ 2=21 59, P<0 01) Conclusions The results indicated that the 4 hour imaging can effectively enhance the ability of routine rest imaging to detect myocardial viability by onetime injection and has practical clinical value in evaluating viability of ischemic myocardium

目的评价4小时99mTc甲氧基异丁基异腈(MIBI)延迟显像在评估心肌活力方面的价值。方法对30例冠心病(CAD)病人(18例经冠状动脉造影证实)进行常规静息和4小时延迟99mTcMIBI心肌断层显像。对其中10例经冠状动脉血运重建术治疗的病人术后356±192天进行心肌断层显像随访。将左室心肌划分为9个节段。采用四点计分法对各节段核素分布进行半定量评价(摄取正常=3,重度降低或缺损=0)。结果30例CAD病人常规静息显像示126个(467%)节段核素分布异常,延迟显像示105个(389%)节段核素分布异常。常规静息显像心肌计分≤1(“无活力”)的节段有93个;延迟显像时364%的0分节段和531%的1分节段计分改善≥1。延迟显像与冠状动脉血运重建术后显像对比,判断存活心肌的阳性预测值为842%,阴性预测值为900%,预测准确率为872%,两者有良好的一致性(χ2=2159,P<001)。结论99mTcMIBI延迟心肌显像,通过一次给药可较有效地克服静息心肌显像低估心肌活力的不足,对判定缺血心肌活力状态方面具有临床实用价值

Anotogaster chaoi Zhou sp. nov is allied to A. gregoryi Fraser, but differs from the latter in the following points: segment 1 black, not dorsal spot; segment 2 with bright citron -yellow ring and narroly yellow at apical border; segmemt 10 is entirely unmarked; female wings yellow.

本文记述了圆臀大蜒属Anotogaster Selys一新种:赵氏圆臀大蜒Anotogaster chaoi Zhou,sP.nov.模式标本保存在浙江自然博物馆。

 
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