无方向的

Another example is hydraulic motor-driven conveyor, in a direction of the load, no load in another direction, its need to have two different kinds of brake pressure.

又如液压马达驱动输送机，在一方向有负载，另一方向无负载时，其需要有两种不同的刹车压力。

A positive and negative projection method of object to be tested based on universal pattern display card includes using 3D texture to present rebuilt body data of object to be tested, calculating out directional vector array of ray outgoing point to detectors, storing said vector array into pattern display card to form directional vector texture, rotating directional vector texture and directional vector around rotary shaft to realize once of positive projection course on any projective angle, using 3D texture index technique to let virtual slab set position be not limited any more in negative projection course.

本发明属于投影探测与成像技术领域，其特点在于该方法含有以下步骤：把被测物体的重建体数据用三维纹理存储表示；预先计算射线出射点至平面探测器上个探测器之间的方向向量数组，并存储到通用图形显示卡中形成方向向量纹理；利用方向向量纹理与方向向量绕旋转轴旋转来实现任一投影角度的正投影过程的一次完成，无中间结果转存；在反投影过程中，利用三维纹理索引技术使虚拟切片组的放置位置不再受到限制。

And There was no serious complication;②In the course ofinterventional therapy, Direct portal vein angiography demonstrated vena coronaria ventriculi(100%)andgastricveins(65.26%)andvenagastricaposterior38.43%, Angiography demonstrated venacoronariaventriculi communicate esophagus varicose veins, gastric veins and vena gastrica posterior communicategastric varicose veins. vena coronaria ventriculi had only a small percentage of double vein, about30.57%. The sites of vena coronaria ventriculi arising from the portal vein, splenic vein, portosplenic junction, were found in 52.06%、27.39%、20.55% respectively.③12 extrahepaticprotosystemic shunts were found in these patients. Include gastro-nephrosshuntof 3 cases, 7 caseswere splenetic- nephros shunt and 2 cases shown recanalization of umbilical vein .④The averageportal pressure before and after the procedure were 3.87±1.82kPa and 3.64±1.14kPa in 73patients, but to the time of rebleeding, it was 3.96±0.23kPa in the 11 cases.⑤There werethree kinds of variceal outcome: disappearance (54,low degree (19).⑥Spearman logisticanalyse and ANOVAtest shown liver function class, variceal degree of the splenic necrosis area,the blood direction in portal vein before operation and remain small collateral routes were thesignificant factors concerning outcome of varices.⑦The bleeding volume and portalhypertensive gastropathy are main risk factors of rebleeding.⑧The course of livercirrhosis is the risk factor of survival and extrahepatic portosystemic shunt , fine varices are thebeneficial factors to survival.⑨During all cases'followed-up data, the 1, 2, 3, 4, 5 yearcumulative survival rates and rebleeding rates were 17.81%, 28.77%, 38.36%, 43.84%, 47.95%and93.15%,91.78%,86.30%,83.56%,80.82%respectively. Conclusion The interventional disconnection treatment for liver cirrhosis and portalhypertension was designed suitability. It rapidlycontrol bleeding,butpressure of portal vein was notobvious high, perfusion was not low .it was compared with surgery therapeutic that interventionaldisconnection treatment was safe and had a significant clinical effect to hemorrhage and preventfrom rebleeding.

结果：①术后一过性发热62例(84.9%)，腹痛腹胀48例(65.8%)是介入断流术常见的并发症，未发生严重并发症；②门静脉造影显示胃冠状静脉、胃短静脉和胃后静脉的曲张分流的出现率是100%、65.26%和38.34%；显示食管静脉曲张主要由胃冠状静脉供血，胃静脉曲张主要由胃短静脉和胃后静脉供血；胃冠状静脉大多数为单支，少数为双支，其双支的出现率分别为30.57%；胃冠状静脉开口于门静脉主干的为52.06%，开口于脾静脉主干的为27.39%和开口于门脾静脉交汇处的为20.55%；③发现胃肾分流3例，脾肾分流7例、腹膜后门腔静脉分流2例，以及CTA检查发现脐静脉开放者2例；④73例患者介入断流术前和术后平均自由门静脉压力分别为3.87±1.82kpa和3.64±1.14kpa，前后比较存在显著性差异；11例再次介入手术患者的术前、术后和复发后的自由门静脉压力分别为4.02±0.24kpa、3.82±0.25kpa和3.93±0.23kpa ，前后比较发现首次术前与术后存在显著性差异，首次术前和复发出血术前门静脉压力比较无显著性差异；⑤介入术后复查曲张静脉转归基本消失54例，轻度19例；⑥Spearman相关分析和Logistic多因素回归分析，肝功能分级、静脉曲张程度、门脉血流方向和残存小侧支四个因素对曲张静脉转归有影响；Spearman相关分析和Logistic多因素回归分析门脉高压性胃病和出血量等因素对复发出血时间有影响；⑦COX回归分析，门体分流和曲张静脉转归两个因素对术后生存有影响；⑧术后随访6-70月，1、2、3、4、5年的累计复发出血率和累计生存率分别为17.81%、28.77%、38.36%、43.84%、47.95%和93.15%、91.78%、86.30%、83.56%、80.82%；结论：介入断流术治疗门脉高压食管胃底静脉曲张有独特的优点，可以快速直接控制曲张静脉出血而门静脉压力无显著增高，保证了肝脏灌注；与外科分流术相比适应证广、损伤轻、术后恢复快，不易遗漏曲张静脉；肝功能分级、曲张静脉程度、门脉血流方向和残存侧支血管对食管胃曲张静脉转归有影响；门脉高压性胃病对复发出血时间有影响；门体分流和曲张静脉转归对生存时间有影响。

Sensor less blushless direct current motor is the prospect of brushless direct current motor, however, the key factors which rotor position estimation can be diffcultly gotten at standstillor low speed limit brushless motors use.

无位置传感器无刷直流电机是无刷电机的发展方向。

By the analogy test, the arc suppressing effect of mechanical arcless on-load tap changer is clear, The scheme of arcless on-load voltage regulating system, which is consisted of thyristor controlled series transformer and thyristor controlled filter, is illuminated on electrical structure, control strategy and performance in details.

无弧有载调压技术的研究方向分为机械式无弧有载分接开关调压和静止无弧有载调压两个方面，通过模拟试验，对机械式无弧有载分接开关的灭弧效果和应用可行性进行了探讨。

Type of guide Loading method Ball retainer Ball Cage LaCS is available Ball 4-way Equal Load Type Yes None None Plate cover / steel tape is available Dust cover type Seal Resistance Value Seal types for seal resistance value Dedicated cap for the LM rail mounting hole None Bellows 14.70 UU C8 Applicable to QZ Lubricator Lubrication method Grease brand Nipple, plumbing fixture type Preload grade None Grease lubrication,...

导轨型号负荷方式防止滚珠脱落用保持器球保持器与LaCS配用滚珠 4方向等负荷型有无无可选用紧绷薄钢带/粘接薄钢带防尘罩形式密封垫片阻力值各种阻力值的密封垫片 LM轨道安装孔专用防尘盖无软式伸缩护罩 9.80 UU C6 可配用QZ润滑装置润滑方式润滑脂品牌螺纹接口、配管接头型式预压等级无脂润滑，油。。。

Type of guide Loading method Ball retainer Ball Cage LaCS is available Ball 4-way Equal Load Type None None None Plate cover / steel tape is available Dust cover type Seal Resistance Value Seal types for seal resistance value Dedicated cap for the LM rail mounting hole None None 0.20 UU C4 Applicable to QZ Lubricator Lubrication method Grease brand Nipple, plumbing fixture type Preload grade None Grease lubrication, oil...

导轨型号负荷方式防止滚珠脱落用保持器球保持器与LaCS配用滚珠 4方向等负荷型有无无可选用紧绷薄钢带/粘接薄钢带防尘罩形式密封垫片阻力值各种阻力值的密封垫片 LM轨道安装孔专用防尘盖无软式伸缩护罩 2.90 UU C4 可配用QZ润滑装置润滑方式润滑脂品牌螺纹接口、配管接头型式预压等级无脂润滑，油。。。

Type of guide Loading method Ball retainer Ball Cage LaCS is available Ball 4-way Equal Load Type Yes None None Plate cover / steel tape is available Dust cover type Seal Resistance Value Seal types for seal resistance value Dedicated cap for the LM rail mounting hole None Bellows 4.90 UU C4 Applicable to QZ Lubricator Lubrication method Grease brand Nipple, plumbing fixture type Preload grade None Grease lubrication, o...

导轨型号负荷方式防止滚珠脱落用保持器球保持器与LaCS配用滚珠 4方向等负荷型有无无可选用紧绷薄钢带/粘接薄钢带防尘罩形式密封垫片阻力值各种阻力值的密封垫片 LM轨道安装孔专用防尘盖无软式伸缩护罩 4.90 UU C4 可配用QZ润滑装置润滑方式润滑脂品牌螺纹接口、配管接头型式预压等级无脂润滑，油。。。

Lead Ph Basic load rating Permissible load F P Nut mass Shaft mass Dynamic rating Ca Static rating C 0 a mm kN kN kN kg kg/m 10 30.7 79.3 5.26 10.65 Type using standard material Standard grease Standard seal Iron-based AFB-LF None Dimensions of the Ball Screw Nut Attached with Wiper Ring W and QZ Lubricator WW avail- ability QZ avail- ability Dimensions including WW L Length of protrusion with QZ attached QWL Outer diameer of protru- sion with QZ...

载荷钢球圈列数 DN值预压预压方法预压负荷 1row 2.50圈 70000 有定位置预压 1535 导轨型号丝杠轴加工方式球保持器轴的花键部分中空轴滚珠精密无无无轴承支撑座固定侧的推荐方式轴承支撑座支撑侧的推荐方式螺母种类螺纹方向间隔钢球 BK30，BK35，FK30 BF30， BF35， FF30 双螺帽右螺纹，左螺纹，左右螺纹无。。。

Lead Ph Basic load rating Permissible load F P Nut mass Shaft mass Dynamic rating Ca Static rating C 0 a mm kN kN kN kg kg/m 8 39.1 132.3 5.08 14.0 Type using standard material Standard grease Standard seal Iron-based AFB-LF None Dimensions of the Ball Screw Nut Attached with Wiper Ring W and QZ Lubricator WW avail- ability QZ avail- ability Dimensions including WW L Length of protrusion with QZ attached QWL Outer diameer of protru- sion with QZ...

载荷钢球圈列数 DN值预压预压方法预压负荷 1row 2.50圈 70000 有定位置预压 695 导轨型号丝杠轴加工方式球保持器轴的花键部分中空轴滚珠精密无无无轴承支撑座固定侧的推荐方式轴承支撑座支撑侧的推荐方式螺母种类螺纹方向间隔钢球 BK20，EK20，FK20 BF20， EF20， FF20 双螺帽右螺纹，左螺纹，左右螺纹无轴。。。

According to the clear water experiment, aeration performance of the new equipment is good with high total oxygen transfer coefficient and oxygen utilization ratio.

曝气设备的动力效率在叶轮转速为120rpm～150rpm时取得最大值，此时氧利用率和充氧能力也具有较高值。

The environmental stability of that world - including its crushing pressures and icy darkness - means that some of its most famous inhabitants have survived for eons as evolutionary throwbacks, their bodies undergoing little change.

稳定的海底环境─包括能把人压扁的压力和冰冷的黑暗─意谓海底某些最知名的栖居生物已以演化返祖的样态活了万世，形体几无变化。