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螺旋管

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By continuous welding the helically wound fin to the tube, more efficient heat flow is achieved from the tip of the tube wall, it also eliminates gaps in the heat flow which can occur when interrupted or spot welding procedure is used .

由于连续地把螺旋翅片焊接到管子上,就使更多的有效热流从翅片顶端直达管壁,且消除当采用间断焊或点焊焊时可能存在的热阻问题。

3 AC motor 15kw 1/set 1.4 Speed regulator 15kw 1/set 1.5 Detailed requirement:--thermal treatment and quench for gear surface Feeding base 6 Auto feeder --mode vacuum suction model 7 Dry with hopper type --mode auto control temp.hot wind for heating --mode AC motor 2、Composite die head with changeable core and mouth mould ф11~ф32mm one unit moule --mode spiral type,with changeable mouth moule and core moule --heating control zone stainless steel heating ring --power Each set for changeable calibrator、mouth moule and core rod

1.3交流电动机十五千瓦1/set 1.4调速器一十五千瓦1/set 1.5详细的要求:-热处理和淬火齿轮表面喂养基地 6 )自动接驳-模式真空吸管模型 7 )干燥,漏斗型-模式的自动化控制t emp.hot风加热-模式交流电动机 2 ,复合模头与复杂多变的核心和口模ф11 ф32毫米一个单位moule -模式,螺旋型,与复杂多变的口m oule和核心m oule -暖气管制区不锈钢暖气响动-电源每套为复杂多变的校准,口moule和核心杆

CT scan is an important modality in the diagnosis of Mullerian duct cyst.

结论CT扫描是诊断苗勒管囊肿的重要方法,螺旋CT三维重组技术对指导外科手术有重要价值。

The dispersion and interaction impedance of two kinds of helical slowwave structure with vane-loaded are measured by using nonresonant perturbation method in 4~18 GHz with Aglient 8510C vector network analyzer.

螺旋线行波管由于其具有高功率、高增益、高效率和宽频带的特点,在电子对抗和通讯等领域具有广泛的应用。

objective: to investigate the effect of resectability by multislice spiral computer tomography and multiplanar reconstruction to the patients with protopathic cholangiocarcinoma.

目的:探讨多层螺旋ct、多层面重建技术、磁共振胆胰管成像、超声在原发性胆管癌患者术前可切除性评价的可信度。

Structure characteristics of the shell-side of the shell-and-tube heat exchanger and laws of fluid flow and heat transfer are researched deeply, and ""sideling flow"" in the shell-side is researched especially.

相对于现有壳程流体横向流、纵向流和螺旋流的流动状态,换热器壳程流体的倾斜流动状态兼有壳程流体横向流动和纵向流动所具有的传热和阻降性能的双重优势,从而发展了管壳式换热器壳程结构设计理念。

Because of having surplus weld reinforcement height and irregular seam form as well as the influences of polyethylene raw materials and coating process, the quality problems of ununiformity in thickness of 3PE coating and coating thickness reduction on helical seam occur.

由于螺旋埋弧焊管存在焊缝余高超高和焊缝形貌不规整等现象,加之聚乙烯原材料及涂敷工艺等因素的影响,会使三层PE防腐涂层出现涂层厚度不均、焊缝处涂层减薄等质量问题。

High accuracy for the detection of nephrolithiasis and ureterolithiasis is obtained and the radiation dose significantly decreased by using unenhanced 16-detector helical CT performed at a reduced tube current of 60mAs for the patients less than 90 kg.

对于体重<90kg的病人,在16层螺旋CT,管电流为60mAS的低剂量平扫诊断肾及输尿管结石能够获得高的准确率,并且明显降低病人的放射剂量。

Low-dose MSCT is sensitive and safe in investigating ureterolithiasis. High accuracy for the detection of ureterolithiasis is obtained and the radiation dose is significantly decreased by using low-dose MSCT performed.

低剂量螺旋CT平扫是一种敏感、安全的输尿管结石的检查方法,它诊断输尿管结石能够获得高准确率,并且明显降低对病人的放射剂量,延长了球管的使用寿命。

Fourpatientswere diagnosedfree ofASO,and 55 patients exhibited discontinued sclerosis orblock of lower extremity arteries around whichwere plenty ofblood-supply peripheral arteries.Conclusion 64-slice CT angiography can display the featuresof lower extremity arteries clearly,such as vasiform,arterial stenosis degree,occlusion and calcified plaque.

64层螺旋CT血管成像检查可清楚地观察下肢动脉的血管形态及管壁的钙化斑块,了解下肢动脉狭窄程度及闭塞情况,对下肢动脉硬化性闭塞性病变的术前评价、诊断和筛选有较大的帮助。

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推荐网络例句

Breath, muscle contraction of the buttocks; arch body, as far as possible to hold his head, right leg straight towards the ceiling (peg-leg knee in order to avoid muscle tension).

呼气,收缩臀部肌肉;拱起身体,尽量抬起头来,右腿伸直朝向天花板(膝微屈,以避免肌肉紧张)。

The cost of moving grain food products was unchanged from May, but year over year are up 8%.

粮食产品的运输费用与5月份相比没有变化,但却比去年同期高8%。

However, to get a true quote, you will need to provide detailed personal and financial information.

然而,要让一个真正的引用,你需要提供详细的个人和财务信息。