The utility model relates to a rectangular tube lead-acid accumulator.
一种方矩形管式铅酸蓄电池。
Features: the lifting mechanism adopts high strength manganese steel rectangular tube production.
特点：举升机构采用高强度锰钢钜形管制作。
Aiming at the deficiency of rectangular tube drawing process, the forming process was optimized from two aspects.
针对矩形管拉拔成形中出现的不足，本文从两个方面对矩形管拉拔成形过程进行优化。
Pipe end its shape is divided into tube, square tube, rectangular tube, oblate tube, P-shaped pipe, rectangular pipe.
钢管因其端部外形又分成圆管、方管、矩形管、扁圆管、P形管、异型管。
The achievements of our research groups on the behaviors of concrete-filled steel rectangular tube columns under fire conditions are introduced.
简要介绍了关于火灾下矩形钢管混凝土柱力学性能的研究成果。
In this paper, a 3-d parametric finite element model for a pressurized cylinder with a long rectangular tube joint was established using the finite element software FEPG.
在本论文中，运用有限元软件FEPG建立了带长矩形接管受压圆筒体的三维参数化有限元模型。
The square and rectangular tube of handling container by SPA-H strip can be meet the requirement of custom, and same assortment hot rolled coil strip can be replaced by it.
用该钢带制造的集装箱方矩形焊管完全可满足用户要求，可替代同品种的热轧卷板。
For boiler air-flow rectangular tube, the article introduced using Logarithmic Chebychev method to design air-flow meter and choose appropriate proper model according to design scheme.
文章针对锅炉送风矩形大管道，运用“对数一切比雪夫”法的速度一面积法，来设计风量测量装置，以及根据设计的方案选型。
The invention relates to a double-rectangular tube restraining type assembled buckling-restrained brace with an H-shaped cross section, belonging to the technical field of structural engineering.
双矩形管约束型H形截面装配式防屈曲耗能支撑，属于结构工程技术领域。
A vertical stiffening rib joint is suitable for rectangular steel tube column with smaller section to H-beam connection.
垂直加劲肋节点适用于柱截面较小的方钢管(矩形管)柱和H型钢梁节点。
Such as: stainless steel pipe, square pipe, rectangular pipe, embossed pipe, threaded pipe, platinum-plated tube.
如：不锈钢圆管、方管、矩管、压花管、螺纹管、镀铂金管等。
Hydrodynamics and desulfurization characteristic were compared for rectangular draft tube spouted bed and rectangular spouted bed and conical-cylindric spouted bed.
对无导流管矩形喷动床与导流管矩形喷动床及柱锥形喷动床的流体力学性能和脱硫性能进行了对比。
The technology to avoid the dishing and folding of pipe shell appearing at the bending of long rectangular non-stuffing and coreless tube was introduced.
介绍了避免无填料和衬芯的长矩形管弯曲成形后管壁出现内陷及折痕的工艺，模具结构特点及设计中注意的事项，模具结构合理，便于加工、装配及使用。
The results show that the cutoff frequency of the rectangular waveguide tube with the same equivalent radius is far greater than that of the cylindrical tube.
理论研究结果表明：对于同样等效直径的矩形谐振管，其截止频率远大于圆形谐振波导管的截止频率；
In this paper, a theoretical study for the local buckling of the concrete filled rectangular steel tube subjected to axis force is presented.
本文对矩形钢管混凝土轴压柱钢管壁的局部屈曲性能进行了理论分析研究。
The domestic research on rectangular-tube flange connection is completely blank, and no design method is given in foreign references.
方管法兰连接的研究在国内几乎是空白，国内外的相关资料中也没有给出成熟的设计方法。
The FDM numerical analytic method is applied to calculate the fin efficiency of elliptic tube with rectangular fins on which the disturbing holes were dug by using additional source term technique.
采用有限差分数值分析方法，应用温度逐次更新处理技术对不同扰流孔下的椭圆管矩形翅片的肋效率进行计算。
The vertical stiffener connection is suitable for rectangular steel tube column that the sectional area is smaller and H-steel beam connections.
垂直加劲肋节点适于柱截面较小的方钢管(矩形管)柱和H型钢梁节点。
Based on the experiment, the enumeration method of Bifidobacterium by rectangular test tube was put forward, according to the anaerobic specificity of double layer half solid culture.
利用双层半固体培养基具有良好厌氧性的特性，在实验的基础上，提出了采用方形试管对双歧杆菌进行计数的方法，介绍了该方法的基本原理和操作步骤。
The elliptical tube with rectangular plate fin, which is usually called double row tube, is one kind of basic heat exchange element for direct air cooled condensers.
矩形翅片椭圆管，即双排管是直接空冷凝汽器的一种基本换热元件。
For example, the piers using elliptical concrete filled steel tube (CFST), can more effectively reduce the impact acting on the piers, compared with piers using circular or rectangular CFST.
例如，采用椭圆形钢管混凝土桥墩，相比圆钢管混凝土和矩形钢管混凝土，可以很有效地折减水流对桥墩的冲击作用。
The engineering practice shows that the using of concrete-filled rectangular steel tube members reduces the size of the columns, and it is a convenient way to connect steel beams and columns.
工程实践表明，矩形钢管混凝土结构承载力高、抗震性能好，可显著减小柱断面，与钢框架梁连接方便。
The elliptical tube with rectangular plate fin, which is usually called double row tube, is one kind of basic heat exchange element for direct air cooled condensers.
矩形板翅式，这通常被称为双列管，椭圆管是一种直接空冷凝汽器热交换的基本元素。
The performances of all the models deteriorate as the void fraction increases. The reason may be attributed to the geometrical differences between a circular tube and narrow rectangular channel.
随空泡份额的增大，各模型的计算性能均变差，可能是通道几何差异所致。
At last, the important problems in the construction of concrete-filled rectangular steel tube were introduced.
最后介绍了矩形钢管混凝土施工中的重要问题。
Concrete Filled Rectangular steel Tube (CFRT) has been extensively applied in steel residential building.
钢管混凝土柱在钢结构住宅中得到了广泛应用。
Concrete Filled Rectangular steel Tube (CFRT) has been extensively applied in steel residential building.
钢管混凝土柱在钢结构住宅中得到了广泛应用。
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