查询词典 hexagonal system

Moreover, a new and feasible means is provided, and a new thinking is exploited for measuring the diameters of inscribed and circumscribed circle of hexagonal prism.

同时对国内外测量六棱柱体内切圆直径和外接圆直径提出了新的切实可行的办法，开拓了新的思路。

For very large clusters, there is competition between the face centered cubic octahedra and the hexagonal close-packed structures.

在团簇尺寸很大时，Fcc-oct结构和Hcp结构占优势，二者相互竞争。

But all the related investigations are concentrate on Body-Centered Cubic and Face Centered Cubic metals, hexagonal close-packed metals have not been involved yet.

但目前的研究主要集中在体心立方和面心立方结构的金属，而密排六方结构的金属尚没有涉及。

However, magnesium alloys have poor formability due to the hexagonal close-packed crystal structure.

但是，镁合金大多具有密排六方结构，传统上一直被认为是一种难以塑性变形、压力加工成形性能差的金属材料。

However, magnesium alloyshave poor formability and limited ductility at room temperature ascribed totheir hexagonal close-packed crystal structure.

目前热处理细化晶粒成为提高镁合金塑性的一种有效手段，但是研究工作多集中在铸造态镁合金，关于挤压态镁合金型材的研究很少。

But magnesium alloy has a hexagonal close-packed crystal structure with limited number of operative slip systems at room temperature, so magnesium alloys are normally low formability near the room temperature, and limits the expansion of magnesium alloy applications.

但是由于镁合金是密排六方结构，可开动的滑移系比面心立方和体心立方金属的少，使得镁合金的室温塑性较低，降低了成形能力，限制了变形镁合金的推广应用。

Moreover,Al_2Er phase is face centered cubic structure,which is different with the structure of Mg(Hexagonal Close-Packed).

但是过量的Zr将与合金中的Al反应生成Al_3Zr沉淀相，消耗了合金中的Al元素，减弱了Al对镁合金的细化、强化作用，而且由于Al_3Zr与镁基体没有共格关系，不能起到细化晶粒的作用，合金组织粗化。

The hexagonal close-packed Ni nanoparticles were synthesized with the precursor prepared by sol-gel method via heat-treating technique in Ar atmosphere.

采用溶胶－凝胶方法制备前驱体样品，在氩气气氛中不同温度下热处理得到样品。

The elastic constants of bulk lithium with hexagonal close-packed structure under high pressures have been calculated, by using Density Functional Theory and the relationship between stress and strain.

採用密度泛涵理论第一原理贋势方法，利用应力和应变的关係计算了压力下六角密堆结构金属鋰的弹性常数。

Honey is stored in the beehive or nest in a honey comb, a double layer of uniform hexagonal cells constructed of beeswax and propolis.

蜂蜜贮存在蜂箱里，或工蜂用蜂蜡和蜂胶营造的等边六角形的双层蜂巢里。

Foods high in this vitamin include oily fish such as salmon, tuna and, and fish liver oils.

维生素D含量高的食物包括诸如大麻哈鱼、金枪鱼和鲭鱼之类的油鱼以及鱼肝油。

We need you to cosign our public letter demanding that press intimidation cease immediately, and that all charges be dropped.

我们需要您cosign我们的公共信，要求记者立即停止恐吓，并要求所有收费下降。