double tube

application of double tube nasal continuous positive airway pressure ventilation combined with ambroxol hydrochloride in treatment of preterm infants with hyaline membrane disease

双管鼻塞式持续气道正压通气联合盐酸氨溴索在早产儿肺透明膜病中的应用

Based on that, the paper applied the theories of Fluid Mechanics and Mechanics of Elasticity to the double tube telescopic damper, developed the mathematical model with 7 parameters for the first time.

并在此基础上，应用流体力学和弹性力学的有关理论，针对双筒液力减振器首次提出了合理的7参数数学模型。

dynamic characteristic analysis of double-tube shear wall structure

双筒剪力墙结构动态特性分析

Numerical Simulation of Fire in Double Tube Road Tunnel with Transverse Alleyways

具有横通道的双洞公路隧道火灾数值模拟研究

application of semi analytical numerical method to double tube tunnel structures

半解析数值法在地铁工程双线隧道分析中的应用

application of double j tube in eswl for large renal stones

双J管在ESWL治疗巨大肾结石中的应用

accordingly, double tube underside feed and underside return flow heating system can be used to the buildings which are as high as six even eight stories. this has been proved in practical engineering cases.

并用实际工程案例证明，双管下供下回式系统可用于6层，甚至8层建筑的热水供暖系统。

With high pressure air current passing the clearance between the double tube down to the hole bottom and carrying the rock cuttings through the internal pipe up to the earth surface.

它是由动力头回转双壁钻杆进行钻进，用高压气流沿管壁间隙通到孔底后，携带岩屑由钻杆中心孔返回地面。

Design Theory of Double Straight Tube Coriolis Force Mass Flow Sensors

双直管科氏质量流量计传感器设计理论研究

the problem how to discharge air in the double tube underside feed and underside return flow heating system is solved by improvement of system design.

并通过改进系统设计较好地解决了下供下回式热水供暖系统排放空气的问题。

as for the structure, fixed tube plate is adopted in double tube plate heat exchanger and the tube bundle cannot be drawn out for cleaning.

从结构看，双管板换热器采用固定管板式结构，管束不能抽出清洗。

Development and Application of KZ Single Rotary and Double Tube Core Barrel

KZ型单动双管取心钻具的研制与应用

Applying Narrow-gap TAW-P for Production of Double Tube Waste Heat Boiler

窄间距钨极脉冲氩弧焊在双套管废热锅炉制造中的应用

The presentation of usage of liquid column manometer. The correct use method and error correction of U tube manometer and double tube differential pressure gauge were analysed.

主要介绍了液柱压力计的正确使用方法和误差分析。给出了U型管压力计和双管差压计的测量精度。

Conventional double tube bits should be used as bits for drilling, while coring tool is double tube.

当取心钻具采用双层管时，钻进所用的钻头就需要用普通双管钻头。

the utility model relates to a bipolar electrocoagulator which belongs to a medical apparatus. a double tube push-pull principal oscillation circuit is composed of a transistor.

本实用新型涉及双极电凝器，属于医疗仪器，由晶体管构成双管推挽主振电路。

conclusion in the modified radical operation of breast cancer, the keys to prevent the necrosis of skin fiap are proper thickness of skin flap, perfect suture without tension, prevention of lymphatic leakage, effective double tube drainage and suitable bandaging.

结论预防改良乳癌根治术后皮瓣坏死的关键是合理的皮瓣厚度，避免皮瓣张力，防止淋巴管漏，有效双管引流，合适包扎。

closed double tube washing and negative pressure drainage of joint cavity and its nursing

关节腔双管闭式冲洗负压引流的护理

numerical simulation and software development of soil displacement due to double-tube parallel tunnels

双线平行盾构施工引起的土体位移分析及其软件开发

double tube plate and single tube plate heat exchangers have been compared in the light of structure, utilization and the manufacture.

从结构、用途、制造等方面比较了双管板换热器和单管板换热器。

evaluation method for structural strength of asymmetric double tube sheet of marine condenser

舰用冷凝器非对称布管双管板结构强度评估方法研究

Operating result of improved double-tube swivel type diamond drilling tool

φ110mm单动双管金刚石钻具技术改进后的使用效果

a study of computer simulation in counter flow double tube ammonia synthetic tower

双套管逆流式氨合成塔的计算机模拟研究

study of interferences for the determination of pb and cd by double tube graphite furnace aas

双管石墨炉原子吸收法测定铅和镉的干扰探讨

A study on closing double-tube chest douching technique

密闭式双管胸腔冲洗技术研究

Heat exchangers, other than the double concentric tube type or double tube sheet type, must employ a pressure differential and a means for monitoring the differential.

热交换器（除了双同心管换热器或双管板列管换热器）必须使用压力差，并有方法对压力差进行监控。

in response to this problem, professor zhang shaofeng of hebei university of technology presented a new type evaporator with multi-separation chamber and double tube pass heater.

对于粘度随浓度变化较大的物料，在目前的工业蒸发操作中普遍存在传热系数低的问题，对此，河北工业大学张少峰等提出了一种新型多室双管程蒸发器。

clinical application of double j tube

双J管的应用与随访

application of double j tube in urinary diseases

双J管在泌尿系疾患中的应用

double tube drainage plus iodophors douche used in the surgery therapy of trauma of the left colon and rectum

双管引流及碘伏冲洗在左半结肠、直肠创伤一期手术中的应用