查询词典 permeation

For the production of reactive polyurethane cross-linkinger and curing agents, 2, 4-diisocyanate toluene terpolymer, which possesses the rigid structures of hexatomic ring and three reactive functional groups, was synthesized and characterized by the Fourier transform infrared, the gel permeation chromatography and the chemical analysis methods.

为了制备高活性聚氨酯交联固化剂，用2，4-二异氰酸基甲苯三元聚合反应合成了具有3个活性异氰酸根的六元环结构异氰脲酸酯。

For the production of reactive polyurethane cross-linkinger and curing agents,2,4-diisocyanate toluene terpolymer,which possesses the rigid structures of hexatomic ring and three reactive functional groups,was synthesized and characterized by the Fourier transform infrared,the gel permeation chromatography and the chemical analysis methods.

结果表明采用Cat-3作催化剂，在(60±2)℃下反应，可制得分子量为530~550，Mw/Mn=1.10，NCO质量分数为(25.0±0.5)%窄分子量分布的TDI三聚体；随着反应时间延长，TDI会进一步多元聚合生成多聚结构；而加入质量分数为0.4%的苯甲酰氯作为稳定剂，可有效抑制多元聚合的发生，所制备的TDI三聚体稳定性可在半年以上

Objective To study the release and transdermal permeation of the transdermal patch of galanthamine hydrobromide in vitro.

目的 研究氢溴酸加兰他敏贴剂的体外释放和经皮渗透性能。

The transdermal patch of galanthamine hydrobromide had good transdermal release and permeation profile in vitro.

本研究制备的氢溴酸加兰他敏贴剂具有良好的药物释放性能和一定程度的体外经皮渗透性能。

The results indicate that the different thermal expansions and elastoplastic properties and distributed randomness of various mineral particles composed of oil shale will lead to the nonuniformity of thermal field, deformation field and stress field in heating process, which makes the particles of oil shale deform incompatibly: and the release of product pyrolysis results in irreversible damages of oil shale material and structure. These are the main reasons for the thermal fracture of oil shale. When oil shale is heated through thermal conduction, temperature transfers slowly, so the spacing between heating well and production well should not be kept too long. When difference exists in oil shale reservoir's properties, heating well should be chosen in the high conductivity region. Oil shale's stratification is vital for developing permeation zone in in-situ retorting. Oil shale will generate additional expansion force as it reaches its pyrolysis temperature, and stratification will be cracked first, so the oil shale stratification should be utilized to enhance its permeability.

研究结果表明：组成油页岩各种矿物颗粒热膨胀和弹塑性性质的不同及其分布的随机性，导致油页岩加热过程中温度场、变形场和应力场的非均匀性，使得油页岩颗粒间变形不协调和油页岩热解产物释放引起油页岩材料与结构性能发生不可逆的劣化损伤，这是油页岩发生热破裂的主要原因；热传导方式加热油页岩，温度的传递比较缓慢，加热井和生产井的间距不宜过大，对油页岩储层性质存在差异时，注热井应选择较高热导率的区段；油页岩的层理对油页岩地下原位开发形成渗透带至关重要，油页岩达到热解温度会产生附加的膨胀力，首先在层理处开裂，应充分利用油页岩层理赋存条件改造其渗透性。

The results of this thesis can provide some theoretical basements for the design and permeation of the isolator-seismic frame-structure, and can provide some reference for the analyses and design of other style isolator-seismic structure, in the same time, because using of the interspatial modal, which is more advantageous than the plan analyses.

该论文的分析结果，为框架隔震结构的设计和普及提供了理论基础，对其它隔震结构的设计、分析有一定的参考价值，同时由于采用了空间分析模型，与假设条件较多的平面分析方法相比具有较大的优势，为广大的结构设计师提供一定的参考。

Injection collagenase in epidural space and on the surface of intervertebra disc can not enter into the intervertebra disc though diffusion and permeation way.

在硬膜外间隙和椎间盘表面注射胶原酶不能通过扩散和渗透的途径进入椎间盘内。

In Chapter 2, the principles and processes of steady-state oxygen permeation measurement and double iodometric titration are described.

第二章 详细介绍了本论文中所采用的实验方法和设备，包括稳态氧渗透测量法、双碘滴定法测量氧非化学计量、气氛淬火等。

The moisture cream was confected using promote permeation function of volatile oil of Ledum.

利用杜香挥发油的促渗作用，配制了保湿润肤霜。

The 4 organophosphorus pesticides in vegetable oil can be rapidly extracted and separated by gel permeation chromatography, and the lipin and pesticide of vegetable oil can be seperated.

采用凝胶渗透色谱对植物油中4种有机磷农药进行样品净化处理，该方法使植物油中的农药与油脂等得到较好分离，在此条件下干扰物得到了很好的去除，并提高了分析速度。

I didn't watch TV last night, because it .

昨晚我没有看电视，因为电视机坏了。

Since this year, in a lot of villages of Beijing, TV of elevator liquid crystal was removed.

今年以来，在北京的很多小区里，电梯液晶电视被撤了下来。