变晶的

The variety of spinel includes red spinel, ruby color spinel or ruby spinel, purple or spinel similar to the luster of almandine, pink or rosy spinel, reddish spinel, blue spinel, gem color spinel or gem spinel, spinel like alexandrite, black spinel, candite or ceylonite.

尖晶石的种类包括（红色尖晶石、红宝石色的尖晶石或红宝石尖晶石、紫色的或类似贵榴石色泽的尖晶石、粉或玫瑰色尖晶石、桔红色尖晶石、蓝色尖晶石、蓝宝石色尖晶石或蓝宝石尖晶石、象变石的尖晶石、黑色尖晶石、铁镁尖晶石或镁铁尖晶石）。

This article introduces a new contravariant bridge circuit in the power source of the medium friquency induction furnace,analyzes the necessity of using R-C for protecting the thyris-tors.

介绍一种新型晶闸管中频感应电炉的逆变电桥，分析了对该电桥逆变晶闸管采用阻容保护电路的必要性。

All crystalline structrue has been investigated by XRD, on the basis of which the relationship between dopant dose and lattice constant and the size effect of phase transformation were discussed.

利用XRD研究了掺杂钛酸铅纳米晶的晶体结构，以此为基础讨论了掺杂量与晶格常数变化的关系以及相变的尺寸效应，并研究了掺杂纳米晶的相组成和晶胞参数。

The macroscopic rheological parameters and microstructure parameters were closely related, it is helpful to explain the essence of multiple rheological properties through the analysis of which the wax evolution process and microstructure of the crude oil which is waxy and high viscosity; the yield time of gelled waxy crude oil monotone increases along with the decreasing of rate of shear (the time of stress effect prolonged), there was power function relationship between them, it can be expressed with ; when adding diesel oil to Sudan crude oil, dilute proportion bigger the eccentricity degree of paraffin particles were bigger too, that was to say the symmetry of wax crystal was better, the wax crystal form fabric more hardly when the intermolecular interaction was smaller; in the light of macroscopica, the fall extent of the abnormity temperature, solidifying point and viscosity could be larger along with the accretion of dilute proportion, as a result, it's rheological properties could be improved.

SD原油析蜡点为94℃，析蜡高峰为50～30℃，异常点为40℃；其蜡晶颗粒细小、对称性差，所以具有较大的比表面能，容易形成联生、联锁结构；损耗角曲线与储能模量曲线或损耗模量曲线的交点所对应的温度与原油凝点或倾点温度非常接近，大约在39℃左右；也就是说，含蜡原油粘弹特性曲线的交点可以表征其流动性；原油宏观流变参数与微观结构参数密切相关，原油析蜡过程及蜡晶微观结构分析有助于诠释易凝高粘原油多重流变特性的本质；胶凝含蜡原油的屈服时间随剪切速率的降低而单调增加，二者显然存在幂函数关系，可用关系式描述；当SD原油加柴油稀释处理时，稀释比越高，蜡晶颗粒的偏心度也越大，亦即蜡晶对称性越好，分子间作用力越小，蜡晶颗粒越不易形成结构，宏观表现为异常点、凝点及表观粘度等流变参数下降的幅度越大，流动性越好。

These jadeite jade specimens show mainly following texture types: granular crystalloblastic texture, equigranular crystalloblastic texture, inequigranular crystalloblastic texture, prismatic crystalloblastic texture, f...

主要的结构类型有粒状变晶结构(粗粒状、中粒状、细粒状及微粒状)、等粒变晶结构、不等粒变晶结构、柱状变晶结构、纤维状变晶结构、碎斑结构、交代结构、糜棱结构及碎裂结构等。

The 43-57km lithospheric mantle could be consist of a suite of cumulates with crystalloblastic texture, cumulate texture and relic magmatic crystalline textures, such as orthopyroxenite, websterite, clinopyroxenite and olivine-pyroxenite. The lithospheric mantle of 43km to Moho discontinuity could be spinel harzbergite and minor spinel lherzolite, in which the spinel harzbergite and minor spinel lherzolite xenoliths are discoveried. The Moho in the region could be an transitional zone composed of cumulates in petrology.

它既包括了具变晶结构的斜方辉石岩、二辉石岩，又包括了具有残留岩浆结晶结构与堆积结构的橄辉岩和辉石岩；向上至莫霍面，应为尖晶石方辉橄榄岩，并有少量尖晶石二辉橄榄岩，本区发现的尖晶石二辉橄榄岩(T7-21)和尖晶石方辉橄榄岩(T35、T58)可能来自该层；本区莫霍面在岩石学上可能为一个由堆积岩组成的过渡带(3～5km)。

It has six kinds of texture: felt-like cryptocrystallineballistic texture, fascicules ballistic texture, radiated ballistic texture, porphyritic texture,gyrated ballistic texture, replacement remnant ballistic texture.

通过镜下分析，栾川软玉的主要矿物成分为透闪石，一般含量在 95%以上，结构可分为毛毡状显微交织变晶结构、纤维束状变晶结构、放射状变晶结构、似斑状结构、旋转结构、交代残余结构。

Applying the theory of deformation partitioning to this area, the author discuss the relationship between deformation and porphyroblast growth, and get the conclusion of the sequence of deformation and metamorphism. At the first time we measure the distribution of chemical composition within the porphyroblast by XRF and confirm the theory of deformation partitioning quantitative.

利用宝音图群泥质变质岩中的存在大量变斑晶矿物，应用变形分解理论，讨论了变斑晶生长和变形关系，确定了变质变形演化序列，提出了变斑晶的生长相，并首次利用同步辐射XRF技术测定了变斑晶矿物的化学成分分布，主要是微区的微量元素成分分布，定量地证实了变斑晶矿物生长相的存在，进而讨论了与变形关系，并进行了变斑晶矿物不同生长相的温压计算。

Then a complete porphyroblast was formed.

初期石榴石、十字石等呈细片状绿泥石、云母等假象，它们组成多结晶中心的网状集合体，接着进一步聚合生长，逐渐连成一片，成为变斑晶的骸晶，然后形成完整的统一的变斑晶，再在此基础上层圈式增生。

Grain boundary slidings happen in this alloy at the creep temperature of 200 ℃ and the deformation of this alloy is coordinated by intragranular slip and grain boundary sliding.

结果表明：在125~200 ℃蠕变温度下，当蠕变寿命接近100 h时，2024铝合金的蠕变应力随着温度的升高明显下降；与125 ℃相比，150 ℃时合金的蠕变应力下降9.3%，在175 ℃时合金的蠕变应力下降30.3%；当蠕变温度为200 ℃时，该合金的蠕变应力下降幅度达到45.8%；在125~175 ℃下，合金在蠕变过程中的变形机制主要为位错在晶内的滑移；在200℃时，合金晶界开始发生滑移，合金变形由晶界滑移与位错在晶内的滑移协调完成；在合金蠕变断面上存在大量微孔，随着蠕变温度的升高，微孔的尺寸明显变大，当微孔尺寸超过3 μm时，微孔对合金的断裂机制有显著影响；在125和150 ℃下，合金的蠕变断口呈现韧窝型穿晶断裂特征；在175和200 ℃下，合金的蠕变断口呈现沿晶断裂特征。

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。