双管的

Rigid PVC pipe production line is mainly used in the manufacture of the plastic PVC pipes with various tube diameters and wall thickness in the aspects such as the agricultural and nonstructural plumbing, cable laying etc. Thin set is composed of the conical twin-screw extruder, vacuum forming table , dragger, cutter, stirring up rack etc. The screws extruder and the extractor adopt the imported AC frequency employ the superior goods. The prime mover has the traction modes such as to claw, three-claw and so on. It may choose the saw blade cutting type or the planet cutting type. It is additionally attached with measuring apparatus and the intensifying device. The unit is of the reliable performance and high production efficiency. This company may allocate the special installation for the manufacture of the inner wall spiral coil and core ply blister tube set according to the clients requirements.

硬质PVC 塑胶管材出产线主要有阿谁与出产农用给排水、建筑给排水、线缆铺设等方面的各类管径、壁厚的塑胶PVC管材，该机组由锥形双螺杆挤出机、真空定形台、牵引机、翻料架等构成螺杆挤出机及牵引机采用进***流变频调速设置，真空泵以及牵引机电均采用优质产品牵引有二爪、三爪、四爪、六爪等牵引体式格局可选用锯片或者行星切割形式，另可计长及增厚装置，机组机能可靠，出产效益高，本公司可更具客户的要求，配备布置专用装置出产螺旋消音管以及芯层发泡管机组

Objective: To compare the effects of different ways of extubation on hemodynamics in patients with double lumen endobroncheal tube.

目的：探讨不同拔管方式对插双腔支气管导管的患者拔管时的血流动力学的影响。

Bronchoscopy was performed -3- by another anesthetist after intubation and auscultative verification of correct placement and after patient positioning for thoracotomy.

目的 研究在国人中，用纤维支气管镜给Robertshaw双腔支气管导管定位的方法和意义，总结Robertshaw双腔管在国人中应用的规律，以指导临床。

Renal sexual segment, the hypertrophied region of the distal convoluted tubule and/or the forehead of the collecting duct of kidneys in the reptiles of Diapsida Lepidosauria, especially in male individual of Squamata, is a secondary structure of the male.

肾性节是一种雄性副性结构，主要存在于爬行动物双孔亚纲 Diapsida 鳞龙下纲 Lepidosauria ，尤其是有鳞目的雄性，由肾脏的集合管前端或肾单位的远曲小管末端膨大特化而成。

METHODS Retrospective study,documented laryngoscopic images from 18 normal subjects and 27 patients diagnosed chronic laryngitis by Department of Otolaryngology-HNS of Northwestern University.

方法回顾性研究美国西北大学医学院耳鼻咽喉科硬管喉镜录像资料，用计算机图像分析软件对其进行定量分析，其中正常组18例，慢性喉炎组27例，分别选取双侧杓区、杓间区、双侧声带5个区域的图像进行分析，计算各区域黏膜的红色指数。

In this paper, the basic principle of the conventional slip energy recovery induction motor drive is discussed. Two kinds of slip energy recovery induction motor driving systems with high factors are discussed, and the performance analysis of these methods is compared. On the basis of above, a new type of three-phase and four-line slip energy recovering drive is proposed.

本文首先从普通串调原理入手，简要分析了影响串调系统功率因数的主要因素；在对三相四线双晶闸管串级调速、新型GTO串级调速等几种高功率方案进行分析与比较的基础上，提出了一种新型三相四线制双IGBT串级调速控制方案。

The company's main products are: single-color boiler water level gauge glass, quartz glass single two-color series of water level table; Maglev Series Direct Reading and Remote Level Gauge, magnetostrictive liquid level meter, electrode contact point and dual-listed water level gauge, inductive level sensors, external ultrasonic level gauge and a variety of liquid level sensor transmitter and control Alarm, etc. more than 10 types of level instrumentation.

公司的主要产品有：玻璃板单双色锅炉水位计、石英玻璃管式单双色系列水位表；磁浮式系列直读和远传液位计、磁致伸缩液位计、电极点及双联系列水位计、电感式水位传感器、外置式超声波液位计以及各种液位传感变送器，控制报警仪等十多个种类的物位仪表。

Is a production machine attachment attachment professional manufacturers, the product has JR-2 type rectangle metallic hose, P4-typestainless steel hoses, engineering plastics towline, Steel towline, DGT catheter protective kits Organ guard, plate guard, Chip, and machine work lights, adjustable plastic cooling pipe and other machine tool attachment, and the production and sale of P4-typestainless steel hose equipment and provide technical and after-sales service.

沧州市盛昊机床附件有限公司是生产机床附件的专业厂家，产品有JR-2型矩形金属软管、P4型双扣不锈钢软管、工程塑料拖链、钢制拖链、DGT导管防护套、风琴式护罩、钢板护罩、排屑器、机床工作灯、可调塑料冷却管等各种机床附件，及生产和销售P4型双扣不锈钢软管的设备并提供技术、售后服务。

The synthesized MnO_2 material heat-treat at 150℃showed a better cycling stability than the MnO_2 material heat-treat at 40℃.

碳纳米管具有理想的双电层电容特性，但是未处理过的碳纳米管材料比容量偏小。

"Each of the million or so nephrons in each kidney is a tubule 1.2-2.2 in.(30-55 mm ) long. At one end it is closed, expanded, and folded into a double-walled cuplike structure (Bowman's capsule) enclosing a cluster of capillaries."

每个人的肾脏约含100万个肾元，各肾元为一条长约30～55公厘的极细小管，该管一端封闭，膨大，折成双壁杯状构造，包覆着一团毛细血管。

I can not make it blossom and suits me

我不能让树为我开花

When temperatures are above approximately 80 °C discolouration of the raceways or rolling elements is a frequent feature.

当温度高于 80 °C 左右时，滚道或滚动元件褪色是很常见的特征。