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倒不是笔者对日本音响器材存有偏见,而是以国际音响市场而言,长久以来日本器材只能攻占中低价位的市场,特别是音箱几乎挤不进Hi-E......
近期,《Diabetes Care》发表了一项关于结构性检测(STEP)的研究报告,这项研究为期12个月,是前瞻性、随机分组的多中心临床试验。......
The etouchang-typeiron deposit is a typical stratabound deposit in the northern part of central Yunnan. The discussion ......
目前,世界上先进的无缝钢管轧机首推限动芯棒连轧管机组,但这种机组产量高、设备多、技术复杂、投资大、建设周期长,用来改造我国......
针对鞍钢无缝厂的圆盘延伸机组改造涉及的导盘系统技术问题,结合延伸机的有关技术性能,分析了导盘受力情况。
Aiming at the tech......
Accu—Roll轧管机是取二辊延伸机、三辊轧管机、连轧管机之长而发展的。其产品质量,技术经济指标都能达到要求标准,生产能力也相当......
一、ACCU-ROLL无缝钢管轧机产生的背景 ACCU-ROLL无缝钢管轧机是由狄塞耳轧管机发展而成的。狄塞耳轧管机于1918年获专利权,1932......
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对现有钢管厂进行技术改造是扩大钢管品种,提高产量,质量且投资少的一个重要途径。文章比较了现有无缝钢管轧机的工艺特性,介绍了......
从美国艾特纳标准公司引进的Accu Roll无缝钢管轧机于今年初在烟台钢管厂试生产成功。现已试产外径108、114、121和133mm四种规格......
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请下载后查看，本文暂不支持在线获取查看简介。
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Multi-central Clinical Research into Treating 80 Cases of Chronic Thrombocytopenia with Qi-supplemen
Objective: To probe the effects of qi-supplementing and yin-nourishing therapy (blood-increasing decoction and blood gen......
中国金属学会轧钢学会第三届钢管学术讨论会于1987年2月26～28日在成都无缝钢管厂召开。来自全国48个单位,80名钢管科技工作者参加......
北满钢厂φ140mm无缝钢管厂是国家布点侧重生产高压锅炉管的钢管厂。生产工艺采用改进型狄塞尔(Accu-Roll)轧管机。这是继烟台鲁......
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EllenColeman, R.D., M.A., M.P.H.ProgramDirector, RiversideCardiacFitnessCenterNutritionColumnist, SportsM......
Changes of soil microbial communities during decomposition of straw residues under different land us
Monitoring soil microbial communities can lead to better understanding of the transformation processes of organic carbon......
Effect of lipopolysaccharide on diarrhea and gastrointestinal transit in mice: Roles of nitric oxide
AIM: To investigate the effect of lipopolysaccharide (LPS) on the diarrheogenic activity, gastrointestinal transit (GIT)......
AIM To explore whether copy number variations (CNVs) of toll-like receptor 7 (TLR7) are associated with susceptibility t......
在建立钢管斜轧延伸变形区几何模型的基础上,开发出具有三维图像显示功能的计算机模拟软件,从而为变形区分析及工艺参数的设定与优......
提出淘汰ф318mm、ф216mm周期轧管车间三火成材的生产工艺,建议将ф177mm Accu-Roll轧管机组更换为少机架限动芯棒连轧管机,将ф1......
最近 ,美国芝加哥的 Foremost MachineBuilders公司推出了 Accu Trac树脂共混设备。据称这种设备以较低的成本即可满足小批量混合......
分析了Φ１１４ｍｍＡｃｃｕＲｏｌｌ轧管机结构上存在的一些问题，结合生产实践提出了切实可行的改进方案。
Some problems existing in the structure of Φ1......
通过对导盘材质的组织、成分及金相结构分析，研究了ＡｃｃｕＲｏｌ轧管机合金球墨铸铁导盘在工作中因轧制钢管的甩尾而将导盘工作面的高边崩掉的原......
A CLINICAL STUDY FOR EVALUATING EARLY RADIOTHERAPY EFFECT IN PATIENTS WITH BRAIN TUMOR USING ~(99)Tc
Objective: The purpose of this study was to evaluate the early radiotherapy effect using 99Tcm-HL91 SPECT in patients wi......
由美国Aetna—Standard工程公司开发的一种称为Accu—Roll新型无缝钢管轧机机组,不仅适用于中小型钢厂,而且一旦市场情况需要时,......
Effect of Soil Moisture on Release of Low-Molecular Weight Organic Acids in Root Exudates and the Ac
A three-compartments rhizobox was designed and used to study the low-molecular-weight organic acids in root exudates an......
The focus of this study is a coastal high-resolution (2′×2′) two-way coupled wave-tide-surge interaction model, inclu......
How to improve the probability of registration and precision of localization is a hard problem, which is desiderated to ......
The tracing evaluation index system was designed to be used in virtual enterprise and established neural network trace e......
The roles of on endogenous jasmonates(JAs) and salicylic acid(SA) in wounding response were investigated. Pea(Pisum sati......
Sierra仪表公司最近生产一种气体质量流量计。该流量计采用不锈钢插入式探头,并且带有316个不锈钢敏感元件,探头可以直接地插入管......
An all fiber pulsed coherent Doppler lidar(CDL) system at 1.54 μm wavelength is developed for wind profiles measurement......
针对天然气水合物的形成条件、分布规律、成藏过程与成藏模式等热点问题,介绍了“天然气水合物油气系统”概念,综述分析其主要构成......
目的建立一种快速、准确测定作业场所空气中黑索金含量的方法。方法采用丙酮洗脱、超声提取法,对玻璃纤维滤纸样品进行前处理,利用......
为更准确地模拟基因调控网络的动力学行为,考虑采用新的两导数Runge-Kutta模拟算法.这种数值算法的特点是在格式中融入了真实解的......
目的 研究实时动态血糖监测系统(real-time continuous monitoring system,RT-CGMS)在不同时段检测的准确性及其与血糖波动的关系.......
目的建立基于体素的颅面部锥形束CT三维重叠方法，评估不同基准区域重叠的准确性和可靠性。方法对一个完整干颅骨进行3次锥形束CT扫......
为探究吕家坨井田地质构造格局,根据钻孔勘探资料,采用分形理论和趋势面分析方法,研究了井田7......
目的 探讨颅颌运动仿真系统的骀接触模拟精度,为该仿真系统的应用提供依据.方法 制作10副石膏模型并上(牙合)架.用(牙合)架模拟侧......
提出了一种简单快速测定1,5-二磷酸核酮糖羧化/氧化酶CO2/O2特异性因子的方法.理论上改进了定量计算公式;操作上避免了使用放射性......
用主成分分析法分析了不同产地的11种核桃的蛋白质、不溶性膳食纤维、脂肪、水分、灰分、多种微量金属元素、单宁等12项品质指标,......
Synthetic Aperture Radar Interferometry (for short, InSAR) is a new kind of earth observation technology, which has obta......
The Bohai Bay basin comprises some very important and well documented subtle traps known in China, which have been the m......
