the effect of curvature and torsion on flow characteristics in helical square pipes

1、

optimal design of passes of square and rectangular pipes with high precision

高精度方、矩形管孔型的优化设计

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2、

study on surface of the rectangular shoulder of packaging machines

矩形管翻领成型器曲面研究

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3、

study on postbuckling plate assembly effect of rectangular tube under uniform compression

均匀受压矩形管的屈曲后板组效应研究

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4、

the manufacture of square-rectangle steel tube for containers

集装箱用方矩形管的研制

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5、

the utility model relates to a rectangular tube lead-acid accumulator.

一种方矩形管式铅酸蓄电池。

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6、

design of bending die for long rectangular coreless thin wall tube

无芯薄壁长矩形管弯曲模设计

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7、

this paper analyses the influence of chord stress on the axial strength of rectangular tubular tx-and xx-joints with fe package ansys and carries out the comparison against planar rectangular t-and x-joints.

本文使用有限元软件ANSYS分析了弦管应力对TX型和XX型矩形管节点轴向承载力的影响，并与相应的平面T型和X型矩形管节点作了对比。

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8、

in this paper the performance of overlapped rhs k ( n)-joint with 2 equal-width branches under axial static loads is investigated, with the aid of the fem.

本文用有限元方法对两支管等宽的直接焊接矩形管K（N）型搭接节点在轴向静力作用下的连接性能进行了分析。

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9、

influence of chord stress on the static strength of rectangular tx-joints and xx-joints.

弦管轴向应力对TX型矩形管节点和XX型矩形管节点轴向承载力的影响。

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10、

experimental study on rectangular turbulent impinging jet flow field by piv technique

矩形管湍流冲击射流场的PIV实验研究

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11、

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。

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12、

pda experimental study on gas-solid turbulent flow in horizontal rectangular duct

水平矩形管中气固两相流的PDA实验研究

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13、

simulation of cold roll-bending of square pipe based on a secondary development from ansys software

基于ANSYS二次开发方矩形管辊弯仿真

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14、

cold-roll void forming sheet is an important product in cold-roll forming sheet, which usually includes pipe, square tube, rectangle tube and unusual tube made by special requirements.

冷弯空心型钢是冷弯型钢中的一类重要产品，其通常包括圆管、方、矩形管以及按照特殊要求制作的异形管。

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15、

fast cylinder cooling by low vacuum compound ventilation for 200 mw power generators

200MW汽轮机组低真空复合通风快速冷却汽缸的实践

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16、

we must keep the currency above the float's bottom limits.

我们必须使货币保持在浮动底线之上。

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17、

science and technology-key factors to sustainable development of pasture-animal husbandry in yunnan province

科技是云南草地畜牧业可持续发展的关键因素

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18、

a development pattern of mountain-pasture animal husbandry in sunan country

肃南县山地草原畜牧业的发展模式

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19、

discussion on development pattern of pasture animal husbandry with ecological protection in guizhou karst region

贵州岩溶山区生态保护与草业开发模式探讨

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20、

mongolia; grassland; pasture animal husbandry; sustainable development;

蒙古国；草原；草原畜牧业；可持续发展；

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