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The effect of solution treatment on microstructure and mechanical properties of 7B04 aluminum alloy were studied by optical microscope,tensile test,X-ray diffraction phase analysis and refinement of lattice parameter of α matrix.

通过显微组织观察、拉伸力学性能测试、XRD衍射物相分析以及α基体点阵常数的测量等方法研究了固溶处理对7B04铝合金组织和性能的影响。

It provides a low-Ag leadless brazing filler metal which has fewer alloy components, low Ag content, low cost, small region of alloy melting temperature, high tensile strength and elongation and large spreading area.

本发明提供了一种合金组元较少，含Ag量较低，成本低，同时合金熔化温度区间小，抗拉强度和延伸率高，铺展面积大的低银无铅钎料。

In winter, heat preservation of concrete must be taken to limit the value of thermal tensile stresses.

这些结论和建议，在三峡工程永久船闸隧洞衬砌施工后期得到了应用，取得了较大的经济效益。

The influences of irradiation dose on the crosslinking degree and thermal, mechanical and flame retardant properties of EVA/MH blends were studied through the measurements of gel content, Vicat point, limiting oxygen index, UL-94, tensile testing and the thermogravimetric analysis.

通过对凝胶含量、维卡软化点、氧指数、UL-94垂直燃烧和拉伸性能的测试及热重分析，研究了辐照剂量对EVA/氢氧化镁交联体的交联度、热性能、力学性能和阻燃性能的影响。

The line clamp designed in the article can take the place of the explosive pressing duct to take on the tensile force of line in working order.

设计的爆压管替代线夹，在电路正常运行的工况下替代爆压续接管承担导线的张力，从而达到保护线路和爆压管的目的

Corrosion behavior of high strength galvanized steel wires under certain tensile stress was studied at different temperatures in a simulated acid rain by Tafel linear extrapolation, EIS and accelerated corrosion test.

采用Tafel直线外推法、交流阻抗和加速腐蚀试验，研究了拉伸应力作用下高强度镀镜钢丝在不同温度的模拟酸雨溶液中的腐蚀行为，表征其腐蚀前后形貌。

At the same time, discussions are made on a typical load displacement curve of weldbonded joins in tensile shear test.

同时，对胶焊搭接接头拉伸剪切试验的载荷-位移曲线作了讨论。

His unfinished longbow was carved from yew, the best wood for such a purpose because of its great tensile strength.

奥兹有一张未完工的长弓是以紫杉木雕的，它张力十足，最适合做弓。

Relation between longitudinal wave velocity and uniaxial tensile strength is quadratic curve after high temperature.

高温后纵波波速与抗拉强度关系复合2次曲线关系。

According to the maximum tensile circumferential stress theory ,using the ANSYS parametric design to program macro file, the break process of the engine suspending bearings is simulated.

根据最大周向拉应力准则，应用ANSYS参数化设计语言编写的宏命令程序，对发动机悬置软垫的断裂过程进行了模拟，得出了2种步长时裂纹前进的裂尖位置及相应的裂纹轨线。

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％。