晶体片

Correlation between spin angular momentum s and background angular momentums of planets;2. In the paper the principle of optical rotation due to the transfer of spin angular momentum from light to particles was discussed by analyzing the interaction between the beam of light and birefringent crystal particles, and then an optical tweezers was formed on nanometer optical tweezers system with a linearly polarized light beam (He-Ne laser 633 nm, 10 mW).

从理论上分析了偏振光束与双折射晶体粒子的相互作用过程，讨论了由于光束自旋角动量向晶体粒子的传递所导致的光致旋转效应的原理，并在纳米光镊装置上利用线偏振He Ne激光器(633 nm，10 mW)形成了光镊光阱，利用1/4波片来改变光镊光束的偏振状态，在不同的椭圆偏振状态下实现了直径约为几微米的CaCO3 晶体微粒的捕获和光致转动。

Under the electron microscope, it is revealed that the kaolinite crystals are low automorphic and distinctly corroded, the halloysite crystals are mostly in shapes of tube, rod and tabular-flake, and illites are in ultramicrograin aggregate.

电子显微镜下，高岭石的晶体自形程度差溶蚀现象显著（普遍形成港湾状、浑圆状）；埃洛石晶体多呈管状、棒状以及板片状；伊利石呈超微细颗粒集合体（不规则的鳞片状、浑圆状及板条状等）。

In addition to the reason of crystallography, it is primarily attributed to the effect of the interfaces in the PST crystal on deformation.

这种各向异性的产生有晶体学取向的原因，但最主要的是由于PST晶体中片层界面对变形的影响。

In the single crystal of C60 with a FCC structure,positron mainly appears outside the C60 molecule.The main annihilation space is the interspace between molecules.The calculated positron bulk lifetime in C60 is 352ps, which agrees with experiment value of 356ps in literature.In carbon nanotube bundles with different dimeters,as the diameter of carbon nanotubes increases,the main space where positron appears changes from the interspace of carbon tubes to the space inside carbon tubes,the radio between positron annihilation with valence eletrons and core eletrons becomes larger,the positron bulk lifetime in carbon nanotube increase rapidly first and come to be a constant at the end.The calculated positron lifetime of carbon nanotube with a dimeter of 0.8～1.6ns is 332～470ps,which agrees with the experiment value of 394ps.Positron annihilation has been studied in widly used compound semiconductors.

计算结果表明：在片层结构的石墨晶体中，正电子主要在石墨层间的空隙中湮没，计算出的石墨中的正电子寿命为208 pS，与文献中的实验结果215 ps符合很好；在金刚石单晶中，正电子主要在碳原子之间的空隙中存在并发生湮没，计算出的金刚石中的正电子寿命为115 ps，文献中的实验结果110 ps左右符合；在面心立方结构的C60晶体中，正电子主要在C60分子球壳内外侧及分子之间存在，C60球形分子中心正电子分布很少，正电子的湮没区域集中在C60分子之间的空隙区域，计算出的C60中的正电子寿命为352 ps与文献中的实验结果356ps相符合；对于不同管径碳米管束中的正电子分布，随着碳纳米管直径的增加，碳纳米管束中的正电子由主要在碳纳米管管间的区域出现转变为主要在碳纳米管管内中心的区域出现：碳纳米管束中的正电子与碳原子的价电子的湮没概率变得越来越大，与核心电子的湮没概率变得越来越小；碳纳米管束中正电子的湮没寿命先迅速增大，而后趋于一定值。

We find out that besides themain phase blue flaky crystals, there are also some aqua needle-shaped crystals andblack phases.

通过双目镜对合成产物进行初步表征，发现其主要物相是蓝色片状晶体，其外还有少量浅绿色针状晶体和少量黑色物相。

The polytypic structure of crystal grown in the [1 ■00] direction perfectly succeeds to that of the seed,and thus polytype inclusions never occur during growth.

利用光学显微镜对晶体表面及腐蚀后的晶片进行观察，发现沿[1 ■00]方向生长出的单晶与传统方法沿[0001]方向生长单晶有很多的不同之处，多型对于籽晶的继承性非常强，但是在生长过程中多型夹杂不会发生，该方法生长的晶体中没有发现螺位错缺陷。

Compare the samples with opacifier and original sample, test their acid resistively, alkali resistively, density and Vickers hardness, approve opacifier not effect the vitrified tiles' basic performance.

原始试样析出晶体为针状莫来石和少量石英，粒径在0.1μm左右，正交实验中最佳试样主要析出晶体为片状莫来石和Ca9Al(PO4)7，粒径在1μm左右，添加滑石试样主要析出晶体为板粒状莫来石和Mg3Al2(SiO4)3，粒径在0.5~1μm。

Often called planar transistors, they are built on the surface of a silicon wafer by using a manufacturing process that precisely deposits and then etches away different insulating, conducting and semiconducting materials with such precision that the industry is now approaching the ability to place individual molecules.

通常被称为「平面电晶体」，运用一个将电晶体精确放置在晶片的表面，蚀刻掉不同绝缘、导体和半导体材料的制程，以此精密技术业界将能够在晶片上面放置个别分子大小的材料。

The cooling crystallization and the polymorphic transition processes of L-Serine in aqueous solution were real time monitored by PVM and FBRM. The results show that at a higher temperature, the anhydrous crystals form in club-shaped habit, while the temperature of the slurry was cooled under the polymorphic transition temperature, the club-shaped anhydrous crystals would translate to the hexagonal plate-shaped monohydrate crystals.

利用PVM和FBRM对L-丝氨酸水溶液的冷却结晶过程和晶型转变现象进行的实时监测表明，在高温区析出的是棒状无水合L-丝氨酸晶体，当冷却至晶型转变温度以下时，棒状晶体逐渐转变为六角片状的水合晶体。

Based upon a point-charge plus point-dipole model, the crystal-field splitting parameters for α-TiCl3 layer crystal and β-TiCl3 fiber-shaped crystal were evaluated and estimated, respectively, and the results were used to interprete the diffuse-reflectance spectra of these crystals recently reported in the literature.

本文采用点电荷加点偶极模型，对α-TiCl_3片状晶体和β-TiCl_3纤维状晶体的晶体场分裂参数分别进行了计算和粗估，并用所得的结果翻译了文献上所报导的一些漫反射光谱数据；同时也估计了熔盐中TiCl_6络离子和溶液中Ti(H_2O)_6~(+3)络离子的八面体场分裂参数，所得结果与实验值靠近。

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％。