相变

The crystal structure of the marine 1 nm manganate is quite different with that of the land base todorokite, and it has more similarities with the synthetic 1 nm manganate of buserite instead, therefore the marine 1 nm manganate and todorokite are the distinct manganates. The 1 nm manganate can be transformed into 0.7 nm manganate by losing some water caused by drying, and the 0.7 nm manganate might not be the original manganate phase in polymetallic nodules, but is more likely to be the phase transformation product of 1 nm manganate.

大洋多金属结核中的1nm锰矿相常以陆上钡镁锰矿命名，但两者在晶体结构等方面有很大的差别，并不属同一种矿物，1nm锰矿相与人工合成的布塞尔矿却有更多的相似性。1nm锰矿相会因干燥失水而相变成0.7nm锰矿相，因此结核中的大多数0.7nm锰矿相很可能不是原生矿物，而仅仅是1nm锰矿相的相变产物。

With the help of the obtained normal canonical entropy, we studied the phase transition and showed that when the thermal capacity is emanative, there are no plural numbers at this point in the normal canonical entropy, which shows that the phase transition is of the second order.

利用所给出的正则熵，对黑洞的相变进行讨论，得到当黑洞的热容量出现发散时，正则熵在该处并不出现复数，由此认为此相变为二级相变。

The impact of temperature,pH and ionic strength on the volume phase transition of the hydrogels is studied.The result shows that the volume phase transition temperature of ionizable and thermosenstive copolymer hydrogels depend upon the hydrophilic/hydrophobic character of the comonomers...

结果表明，疏水基末端端基的疏水程度决定凝胶体积相变的速率，随着疏水性单体甲基丙烯酸酯烷基链的增长，凝胶的疏水性增强，凝胶的相转变pH向低pH处迁移；温度高于LCST时，分子间的氢键作用减弱，疏水基团间的相互作用加强，凝胶发生体积相变。

Differential scanning calorimetry and polarizing microscope were used to study their liquid properties. Among them, nine are found to exhibit liquid crystal properties, and most of them displayed as heating monotropic liquid crystals. There are one or two mesophases and certain phase transition temperature,Δ H and temperature range of liquid crystal.

用差示扫描量热仪和偏光显微镜研究了其液晶性，发现其中九个配合物具有液晶性，多为升温单变液晶，有一至两个中介相，有确定的相转变温度、热焓和相变区间。

The Mixed pole-changing simplex winding multispeed motor can eliminate the imbanlance current in parallel branch circuits of parallel pole-changing windings, this is another significant breakthrough after " pole and amplitude modulation speed " in the pole-changing motor development history and is at the world leading position.

混相变极的单绕组多速电动机能消除并联换相变极绕组诸并联支路间不平衡环流，是变极电机发展史上继&极幅调速法&之后又一重大突破，处于世界领先地位。

But at relatively high temperatures, the alloy exhibits complete superelastic characteristics, and only one-step martensitic transformation is observed.

在较低的形变温度下，沿单晶母相［001］方向的压应力诱发的是两步马氏体相变，材料表现出赝弹性；在较高的形变温度下，只能观察到一步马氏体相变，材料展现出完全超弹性特性。

The results show that B2 phase presents broad fibred shape in the forged rod, and major textures are close to {112}〈111〉and {110}〈111〉; Fibred microstructure in hot-extruded tube becomes fine and fibres have broken, at the same time,{111} orientation of many grains is close to axis direction of tube; Microstructure in cold-rolled tube consists of B2,β-Nb and4Ni2O phases, fibres has heavily broken, which restrains phase transformation during cooling and heating.

结果表明：锻棒中的B2相呈较宽的纤维状，主要的织构组分接近{112}〈111〉和{110}〈111〉；热挤压管纤维组织变细且发生碎化，多数晶粒的{111}取向接近管材的轴向；冷轧管相组成为B2、β-Nb和4Ni2O，纤维组织发生严重碎化，抑制了马氏体相变的进行，{111}〈110〉和{112}〈110〉成为主要的织构组分。

It is found by solving the self-consistency equa tion that, at zero chemical potential and finite temperature the chiral phase transition is of second order, while both at finite temperature and density and at zero temperature finite density this transition is of first order.

通过求解序参量所满足的自洽方程，其结果表明：在零化学势有限温度情况下，有二级手征相变发生；对于有限温度和密度以及零温有限密度两种情况，手征相变为一级，并且其转变温度或密度与费米子所处的初始相有关，即从破缺相到正常相的转变温度或密度不同于从正常相到破缺相的转变温度或密度。

This article analyzes the phase diagram of 4 He and λ phase transition of liquid 4 He. Discusses the sorts of the phase transition with vavious temperature and pressure. Indicates the fundamental cause about liquid 4 He named after quantum liquid.

分析了4He的相图和液体4He的λ相变，讨论了在不同的温度和压强下相变的类型，指出了液体4He被称为量子液体的基本原因，介绍了HeⅠ的基本特性，如粘滞系数、热导率，对声波的吸收系数，以及凝聚气体模型。

The main work of this paper is as follows:(1) Ignoring other small content and indissoluble salt, only considering sodium chloride and sodium sulphate, and suggesting these is no Chemical reaction between soil and salt, the phase change rule of salty soil follow the phase change rule of 〓 ternary water and salt system, which obey the phase equilibrium theory.

本文主要进行了以下研究工作：(1)在只考虑NaCl与Na〓SO〓两种易溶盐，而忽略其它在盐渍土中含量与溶解度均较小的盐类，并假定NaCl与Na〓SO〓不与土颗粒发生化学反应的基础上，盐渍土的相变规律实质上是〓三元水盐体系的相变规律，并服从相平衡理论。

It has been put forward that there exists single Ball point and double Ball points on the symmetrical connecting-rod curves of equilateral mechanisms.

从鲍尔点的形成原理出发，分析对称连杆曲线上鲍尔点的产生条件，提出等边机构的对称连杆曲线上有单鲍尔点和双鲍尔点。

The factory affiliated to the Group primarily manufactures multiple-purpose pincers, baking kits, knives, scissors, kitchenware, gardening tools and beauty care kits as well as other hardware tools, the annual production value of which reaches US$ 30 million dollars.

集团所属工厂主要生产多用钳、烤具、刀具、剪刀、厨具、花园工具、美容套等五金产品，年生产总值3000万美元，产品价廉物美、选料上乘、质量保证，深受国内外客户的青睐