晶

The measurement of 1/f noise in amorphous, microcrystalline and polymorphous silicon film was performanced with a self-design semiconductor system.

研究不同厚度的非晶、微晶和多形硅三种氢化硅薄膜的热导率结果表明微晶硅薄膜的晶化增大了薄膜的热导率。

This paper reports the investigation on the petrology of spinel harzburgite and olivine pyroxenite in the Darbut ophiolitic mélange, as well as the worm-like intergrowth texture composed of Cr-spinel and orthopyroxene wide-spreading in harzburgite. Our study shows that the observed intergrowth texture is not a graphic texture or a symplectite as assumed by previous research, instead, it is a product of the evolution of the Cr-rich magma formed after the melting of the primitive mantle.

通过研究西准噶尔达拉布特蛇绿混杂岩中方辉橄榄岩和橄榄辉石岩的岩石学特征，分析方辉橄榄岩广泛发育的铬尖晶石和斜方辉石构成的蠕虫状共生连晶结构的成因，得出结论认为：这种共生连晶结构不是前人所认为的文象结构或者石榴石的后成合晶，而是原始地幔岩熔融形成富铬岩浆的演化产物。

The results show that the microstructures of these three kinds of coating are different from those of the matrix (20 steel). The wear resistance of the flame spray coating is 4. 9 times that of the matrix. This is caused by the existance of hard noncrystal microparticals. The wear resistance of the coating by flame spray welding is 6. 3 times that of the matrix. The reason is that the fine crystal grains can be formed and the solution strengthening, dispersion hardening can be induced by these alloy elements. The resistance of the laser remelt coating is 8. 8 times that of the matrix. This is due to the solution strengthening, dispersion hardening and the existence of very hard dendritic crystal, eutectic and martensite in the microstructure.

作者指出，喷涂层由于层内有一定数量高硬度的合金非晶质点存在，其耐磨性是钢基体的4.9倍；喷熔层内合金晶化产生的晶粒细小，合金元素能起固溶强化作用，也能生成化合物产生弥散硬化作用，故此耐磨性是钢基体的6.3倍；激光涂敷层除所含合金元素产生的固溶强化和弥散硬化作用外，表层组织为高硬度的枝晶+共晶和马氏体，故其耐磨性是钢基体的8.8倍。

Based on the observation of atomic force microscopy, the etching morphology of faces and sections with different crystallographic significance on α-quartz has been studied. The etching morphology on the natural crystal faces hexagonal prism faces (1010 and 01(average10, rhombohedron positive form face 10(average11, rhombohedron negative form face 01(average11 and the sections between any of the two crystal faces has been observed. It is shown that the etching pit on the same simple form has the same shape, while the orientation of the etching pits can be different. Different simple forms have different shapes of etching pits and the shapes of etching pits on positive form and negative form of the same simple form are also different.

通过对α-石英自然晶面六方柱面10(平均值10和01(平均值10、菱面体正形面10(平均值11与菱面体负形面01(平均值11、以及介于上述自然晶面之间的切面进行腐蚀形貌的观察研究发现，石英晶体同种单形的晶面腐蚀坑形态相同，但方位可以有变化，不同单形的晶面腐蚀坑形态不同；同一单形的正形与负形腐蚀坑形状不同；蚀坑形态能够反映晶体的对称性。

Based on this circuit, a series of trigger circuits were generated and excellent trigger effects were achieved.

摘要］该文介绍了晶闸管投切电容器的原理和快速过零触发要求，分析了两类晶闸管的触发电路的特点和存在的问题，指出了一种新型的从主回路晶闸管获取晶闸管电压过零信号的电路框图，以该电路支撑产生一系列触发电路，取得了优秀的触发效果。

Based on this circuit, a series of trigger circuits weregenerated and excellent trigger effects were achieved.

该文介绍了晶闸管投切电容器的原理和快速过零触发要求，分析了两类晶闸管的触发电路的特点和存在的问题，指出了一种新型的从主回路晶闸管获取晶闸管电压过零信号的电路框图，以该电路支撑产生一系列触发电路，取得了优秀的触发效果。

Under such a solidification condition that the growth rate is low and the temperature gradient ahead of the solidi fication front is steep, a large amount of α-Al nuclei can be produced by peritectic reaction, during which only metastable Al〓Zr particles or very fine equilibrium Al〓Zr particles rather than larger equilibrium Al〓Zr partiles are involved.

在低的生长速度和高的界面前沿温度梯度条件下，结晶前沿Al〓Zr粒子与液态铝发生包晶反应（只涉及亚稳Al〓Zr或尺寸极小的平衡Al〓Zr，而不涉及尺寸较大的平衡Al〓Zr）产生大量α晶胚，α晶胚呈球面生长，最终形成等轴非枝晶形态。

With the increasing of undercooling, the mean crystal diameter of supercooled solidification microstructures shows a variation from coarse to fine, then fine to coarse, and finally fine again. The coarse crystals are developed crystals, while the fine crystals are spherical crystals with a mean diameter about 50μm.

2随着过冷度的增加，深过冷凝固的微观组织的晶粒直径呈现出"粗—细—粗—细"的变化规律，粗晶为发达的等轴枝晶，细晶则为直径约50μm的球晶。

Spherulite was firstly observed in the system and the formation, growth and evolvement of spherulite were its crystallization behavior, which was different from other mica-based glass-ceramic systems. Expital growth also was one of the crystallization behaviors.

首次在此体系发现了球晶，球晶的形成、生长和演变是本体系不同于其它云母体系的晶化形式；外延生长也是主要的析晶方式。

Therefore, in order to trace the origin of contribution of the various Co sites to the magnetocrystalline anisotropy of the Co-sublattice, a special attention is paid to the relationship between the evolution of anisotropy of the compounds and the preferred site occupation of non-magnetic atoms over the four available crystallographic sites in the Co sublattice.

因此，本文重点讨论了Co次晶格各向异性演化与非磁性替代原子浓度的关系，以探讨非磁性替代原子在Co次晶格四个不同晶位择优占位对Co次晶格各向异性的影响。

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％。