变晶的

Conventional step heating 40 Ar 39 Ar spectra of metamorphic garnet separated from a high pressure granulite sample yielded date of 1852±8Ma.

采用 4 0 Ar- 39Ar阶段加热法研究华北桑干地区高压基性麻粒岩的变斑晶石榴石，获得 4 0 Ar- 39Ar坪年龄 185 2± 8Ma，4 0 Ar- 39Ar等时线年龄 186 2± 37Ma。

On the other hand, the Ag42In42Ca16 icosahedral quasicrystal is stable both chemically and structurally under the same conditions.

在相同条件下，二十面体准晶Ag42In42Ca16保持不变，具有高的结构和化学稳定性。

The grain shape of Co change to equaxial fine grain and refined by adding of Al2O3 powder.

SEM的表面型态中，未添加Al2O3皆发现等轴状细晶，在添加Al2O3后，成核点数目变多，晶粒会随著添加量增加而减小。

And kyanite, sillimanite as Al2SiO5 of polymorph variants. Orthorhombic.

与蓝晶石、矽线石为Al2SiO5的同质多象变体。

For instance, as temperature decreasing, the Peierls transition will take place in one-dimensional (1D) conductor, at which supperlattice, charge density wave and spin density wave occur.

比如，一维导体是不稳定的，温度降低时会发生Peierls相变，出现超晶格和电荷密度波或自旋密度波，材料成为半导体或绝缘体。

The experiments showed that, the surface microstructure is plate martensite, and the subsurface microstructure is cryptocrystalline martensite. the transition zone contains mixed martensite, troostite and part of the nonmelting ferrite.

实验表明：改性层微观组织由表层至基体依次为：表面熔凝区为片状马氏体；均匀相变硬化区为隐晶马氏体；过渡区为混合马氏体、屈氏体和部分未熔的铁素体。

Point out as a result:the big perfoliate crack in the casting is disappeared after adding the Sr modification, but accompanying with the obvious increase of pinhole and shrink pine, theα(A1) dendritic crystal become more circinal and thin.

结果指出：加Sr变质后铸件中大的贯穿性裂纹消失，但是针孔、缩松明显增多，α枝晶变得比较圆整、细化。

8Co alloy have been studied by means of optical and transmission electron microscopy, X-ray diffraction, dilatometry, tensile tests and Vickers hardness measurements. The inherent factors responsible for the low shape memory effect of polycrystalline Fe-Mn-Si alloys have been revealed.

本文通过金相、透射电镜及X-射线衍射分析以及热膨胀、拉伸和硬度试验等手段研究了Fe-25.6Mn-5.1Si-4.1Ni-1.8Co合金中应力诱发γ→ε马氏体相变和形状记忆效应，揭示了引起多晶Fe-Mn-Si系记忆合金形状记忆效应低的内在因素。

It is shown that the non-crystallization of CaSiO_3 perovskite on decompression is a second transition of softening mode and kinetically controlled metastable process.

由MD模拟数据计算了CaSiO_3系统的红外光谱，分析这些数据可知钙钛矿型CaSiO_3解压缩非晶化是一个二阶软模相变。

The well known peaks at -40℃ and 160℃ are caused by twin boundaryrelaxation and martensitic transformation respectively.

除在-40及160℃附近是熟知的孪晶界面弛豫峰和马氏体相变峰P_？

According to the clear water experiment, aeration performance of the new equipment is good with high total oxygen transfer coefficient and oxygen utilization ratio.

曝气设备的动力效率在叶轮转速为120rpm～150rpm时取得最大值，此时氧利用率和充氧能力也具有较高值。

The environmental stability of that world - including its crushing pressures and icy darkness - means that some of its most famous inhabitants have survived for eons as evolutionary throwbacks, their bodies undergoing little change.

稳定的海底环境─包括能把人压扁的压力和冰冷的黑暗─意谓海底某些最知名的栖居生物已以演化返祖的样态活了万世，形体几无变化。