1)  prestressed concrete bridge
预应力砼桥梁
2)  prestrain
预应变
1.
Effect of prestrain on impact toughness and ductile-brittle transition temperature of welded joint;
预应变下焊接接头冲击韧度及韧—脆转变的分析
2.
The Experimental Study on Mechanical Behaviour of Prestrain A3 Steel;
预应变A3钢的力学性能实验研究
3.
The effect of prestrain on the reverse martensitic transformation of TiNi shape memory alloy fibers embedded in an Al matrix has been studied by differential scanning calorimeter(DSC),X-ray diffraction(XRD) and scanning electron microscope(SEM) methods.
采用示差扫描热分析(DSC)、X射线衍射(XRD)和扫描电子显微分析(SEM)等方法,研究了预应变对铝基体中复合的TiNi形状记忆合金丝的马氏体逆相变的影响。
3)  prestress ring
预应力环
4)  pre-strain
预应变量
1.
The effect of pre-strain on shape recovery strain in an Fe-25%Mn-4.
5%Si-1%Cr-2%Ni合金预应变对可恢复应变量的影响,并用X射线衍射分析方法考察了应力诱发ε马氏体(εM)体积分数随预应变量的变化关系。
2.
The effect of the pre-strain and technique of heating and cooing on the recovery stress of Fe-Mn-Si-CrNi-C shape memory alloy has been studied.
研究了预应变量、加热和冷却工艺对FeMn-Si-Cr-Ni-C形状记忆合金回复应力的影响。
5)  pre-strain
预应变
1.
Influence of pre-strain on fracture behavior of notched specimen of alloy steel with different graininess;
预应变对不同晶粒度合金钢缺口试样断裂行为的影响
2.
In these experiments,specimens were bending to produce different pre-strain respectively,and then reverse bending were taken one by one.
在各弯曲试样得到不同的预应变后,又对其进行反向加载,记录不同预应变下各试样反向加载的弯矩随表面应变的变化曲线。
3.
It is not unloaded until the given pre-strain value is reached.
在不同预变形下对几个试件分别进行加载,当达到给定的预应变值时就卸载,随后再进行反向加载试验,记录其屈服强度。
6)  prestress
预应力
1.
Application of prestress truss cable in large cross section coal roadway;
大断面煤巷预应力桁架锚索的理论与实践
2.
The method of prestressing electrode thread on WEDM;
快走丝线切割电极丝的预应力法张紧
3.
Research and experiment upon prestressed pull-straightening roller in CCM using photoelastic method;
连铸机预应力拉矫辊的光弹性实验研究
参考词条
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性质:简称砼(音同,tóng)。由胶结材(无机的、有机的或无机有机复合的)、颗粒状集料以及必要时加入化学外加剂和矿物掺合料组成合理组分的混合料经硬化后形成具有堆聚结构的复合材料的总称。混凝土按胶凝材料分类,有无机胶结材混凝土(如水泥混凝土、硅酸盐混凝土、石膏混凝土、水玻璃/氟硅酸/混凝土等)、有机胶结材混凝土(如聚合物混凝土、沥青混凝土等)、无机有机复合胶结材混凝土(如聚合物水泥混凝土、聚合物浸渍混凝土等);按容重分类有特重、重、轻、特轻混凝土等;按结构分有普通混凝土、细粒混凝土、大孔混凝土、多孔混凝土等;按用途分主要有结构用混凝土、隔热混凝土、装饰混凝土、耐酸混凝土、耐碱混凝土、耐火混凝土、道路混凝土、大坝混凝土、补偿收缩混凝土、海洋混凝土、防护混凝土等。

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