可逆的

Potassium salt of dicyclopentadienyl dicarboxylate DCPD(COOK2 was applied to CPE as crosslinking agent and a crosslinked product with 81.79% gel content was obtained in solution reaction.

以溶液反应法研究了CPE与DCPD：的交联反应，制得了凝胶量在80%以上的共价交联CPE，考察了不同牌号CPE、催化剂及其用量、反应温度、反应时间及其交联剂用量对CPE凝胶形成量的影响；通过对比实验和IR谱图证明了该凝胶确由CPE与DCPD：经双端醋化反应生成；通过反应溶解性实验验证了共价交联CPE的热可逆转化特性。

The photoresponsive properties of the azobenzene polymers are based on the photoinduced fast and reversible isomerization between the trans and cis isomers of azobenzene upon exposure to UV or visible light, which triggers significant changes in the physicochemical properties of polymer materials. Recent years have witnessed a rapidly increasing interest in azo-containing polymers due to their potential in various optical and optoelectronic applications such as optical data storage, liquid-crystal displays, molecular switches, nonlinear optical devices, photomechanical systems and so on.

偶氮分子在光照下能够发生可逆顺反异构，从而引起偶氮聚合物发生分子取向以及构象转变，使得偶氮聚合物具有优越的光学活性，同时偶氮聚合物结合了偶氮单体的光学活性和高分子材料优异的力学性能和加工性能，在光信息存储材料、非线性光学材料、液晶材料等领域都有重要的应用价值。

Metal hydride is a kind of functional material widely used,which can reversibly absorb and desorb a large amount of hydrogen,and the reaction kinetics of the process has attracted many attentions.

金属氢化物是一种应用广泛的新兴功能材料，能够实现大量氢气的可逆吸放过程，相应的反应动力学研究是一个广受关注的热点问题。

Here, we report the synthesis, structures, and the unique dynamic structural changes that reversibly transform their frameworks, depending on the solvents, with loss and recreation of the porous framework

在这里，我们报告的合成，结构和独特的动态结构变化的可逆转换框架，根据溶剂，损失和娱乐的多孔框架

A lossless data compression algorithm takes a string of symbols and translates it reversibly into another string, one that is on the average of shorter length.

一个无损压缩算法就是将代表字符的序列通过可逆变换变化成为一个新的序列，通过这样的变换使它的平均长度变短。

The damage of rocklike materials is complex. Some mechanical model can provide satisfactory results under simple loading. A few of models (Dragon's, etc) may describe the damage evolution of quasi-brittle materials in the condition of complex loading.

Dragon等人基于不可逆热力学框架建立的准脆性材料的各向异性弹性损伤模型，可以较好地描述岩石类准脆性材料在复杂加载路径下的的应力应变响应和损伤演化过程。

Under triaxial compressive conditions, with an increase of loading, the propagation and sliding of microcracks in rocklike materials become increasingly intense and lead to a serial of consequences, such as nonlinear stress-strain relationships, deterioration of elastic modulus, anisotropic deformation, volumetric dilatancy and irreversible plastic strain, etc..

三维压缩条件下，随着载荷的逐渐增加，岩石类材料内部微裂纹的传播与错动不断加剧，最终导致非线性应力－应变关系、弹性模量的减小、变形的各向异性、体积膨胀以及不可逆塑性变形等结果。

Suggestion is firstly put forward that both of the microprecipitates condensed by N-N pairs and the N-O complex might act as the heterogeneous nuclei for the nitrogen and oxygen involved precipitation with high heat stability. Nitrogen is fixed into them, which determines the unreversible annihilation of NRD.

在此基础上，本文进一步探讨了NRD的热稳定性及其消除规律，首次提出N-N对自凝聚而成的微沉淀态以及N-O复合物皆可能成为具有较高热稳定性的微氮氧沉淀的异质成核中心，氮被固化其中，NRD得以不可逆消除。

By composite addition of cobalt and calcium additives, the utilization and discharge potential of active material could be increased markedly.

物理添加的Co在活化充电时转变为导电性能良好的高价态CoOOH，这种于活性物质表面形成的CoOOH在放电过程中不能可逆地被还原，因而为活性物质与集流体之间以及活性物质颗粒之间提供了良好的电子通道，增加了导电性和有效反应位。

The results show that the adsorption ability of TiO2 composite film for organic compounds is weaker than that of bare glass, and it has good photocatalytic decomposition activity for the organic adsorbates.

结果表明：有机物在空白玻璃及其膜的表面的吸附为不可逆化学吸附，WO3／TiO2复合物膜可钝化玻璃表面对大气污染物分子的吸附能力并具有较好的光催化活性。

On the other hand, the more important thing is because the urban housing is a kind of heterogeneity products.

另一方面，更重要的是由于城市住房是一种异质性产品。

Climate histogram is the fall that collects place measure calm value, cent serves as cross axle for a few equal interval, the area that the frequency that the value appears according to place is accumulated and becomes will be determined inside each interval, discharge the graph that rise with post, also be called histogram.

气候直方图是将所收集的降水量测定值，分为几个相等的区间作为横轴，并将各区间内所测定值依所出现的次数累积而成的面积，用柱子排起来的图形，也叫做柱状图。