双条件的

With the help of the Mountain-Pass Theorem lacking Palais-Smale compactness condition (PSc condition and by adoption of the best attained function of Sobolev embedding, the paper proves the existence of nontrivial solutions of two classes of critical biharmonic equations on boundary conditions by overcoming serial difficulties caused by loss of compactness due to Sobolev embedding.

本文借助于没有 PS 条件的翻山引理，并利用 Sobolev 嵌入的最佳达到函数，克服了由于 Sobolev 嵌入失紧性而带来的系列困难，证明了含临界增长的两类双调和方程边值问题非平凡解的存在性。

Moreover, the molecular weight of polyethely and its distribution or even the physical properties could be adjusted by changing the non-cyclopentadiene ligand; and bi-or single modal polyethylene could be realized in one system according to the different preparation methods and conditions of CpTiCl.

由于非茂配体的可选择范围很广，通过改变半茂钛配合物中的非茂配体，可以调节半茂体系聚合产物的分子量及分子量分布，乃至聚合物的物理性能；还可以根据制备方法和反应条件的不同，实现同一体系内获得双峰或单峰分子量分布聚合物的目的。

It can be used to demonstrate such as optical axis of the uniaxial crystal,principal plane,the ordinary wave front and the extraordinary wave front ,etc.

该仪器用于普通物理光学教学，能形象生动地演示单轴晶体中的光轴、主平面、o光和e光的波面、o光和e光各自的电矢量的振动方向、速率大小关系，并能灵活地结合课堂教学各种实例，说明在不同条件下，双折射的产生及其原因

To lower coating silver,a study on the preparation of silver chloride and bromide emulsion is carried out, including the ratio of chloride and bromide , the residue of chloride and the solvent of silver halide.

为降低涂布银量，应用计算机双注乳化仪，进行了获得具有较高反差的单分散、立方晶型卤化银乳剂的工艺条件的研究，包括不同卤素比例、卤余量和卤化银溶剂的应用对卤化银颗粒大小和照相性能的影响。

Several profile suction pipes with different double slots are developed and applied to spin cotton yarns of same fineness. Though comparing the structure and performance of this cotton yarn with that of yarns by the compact spinning or the Siro spinning, the advantages of compact Siro spinning are further indicated.

用自行研制的具有不同吸风双槽的紧密赛络纺吸风管分别纺制相同线密度的棉纱，并与相同工艺条件下的紧密纺和赛络纺纱线就纱线结构与性能进行比较分析，进一步说明紧密赛络纺纱工艺的优越性。

According to Two Factor Theory of Frederick Herzberg, it can only remove a employee's dissatisfaction of wage and working conditions, but it has no incentive effects, instead, the stimulation are only contributed by the work itself and the sense of responsibility to the work suchlike incentive factors.

根据赫兹博格的双因素理论，工资和工作条件的满足只能消除员工对工作的不满情绪，并没有激励的作用，而起激励作用的是工作本身和对工作的责任感等激励因素。

Laccase could degrade the conjugated resin acids and unsaturated fatty acids in model emulsions to some extend in the presence of ABTS2,2\'-azinobis(3-ethylbenzthiazoline-6-sulfonate or VIO.Palustric acid and abietic acid in DCS of Masson pine CTMP could be partially removed by lacaase treatment without addition of external mediator.

漆酶在ABTS2，2-连氮-二(3-乙基苯并噻唑-6-磺酸或紫尿酸存在的条件下可以降解带有共轭双键的树脂酸和不饱和脂肪酸；在不加介体的情况下漆酶处理可以除去马尾松CTMP的DCS样品中的部分长叶松酸和枞酸。

Three analytical solutions are given including the wet front analysis solution of double medium soil column,the analytical expression of piezometric tube water head and saturation for steady state and the analysis solution of seepage in unconfined aquifer with a periodic boundary condition.

推导了双介质土柱表层水入渗的下渗锋面解析表达式、稳定状态时测压管水头分布与饱和度分布的解析表达式，并给出了有周期性边界条件的有限潜水层内渗流自由面的解析表达式。

The process of the invention mainly comprises disintegrating substrate material of waste printing wiring board into particle material whose particle size is 0.5-3.5 micron, the mixing with double bond reactant, adding with phenyl ethene, conducting reaction under gamma ray irradiation condition, modifying substrate material particles, then commixing material which is treated with acrylonitrile-butadiene-styrene, wherein the adding quantity of substrate material particle is 35%-35%, conducting extrusion pelleting for commixing material on a plastic extruder, wherein extruding temperature is 200-250 DEG C, and finally obtaining plasticity plastic particles with excellent property.

本发明方法主要是：先将废旧印刷线路板基板材料粉碎成为粒径为0.5～3.5微米的颗粒料，然后与具有双键的反应物混合，再加入苯乙烯，并在γ射线的辐照条件下进行反应，将基板材料颗粒进行改性处理。

In the numerical simulations of flow in twin screw extruders, imposition of boundary conditions on the inlet and outlet of the flow domain has long been a controversial problem.

在对双螺杆挤出机流场的数值模拟中，流道进出口边界条件的设置一直是一个颇具争议的问题。

I smile at your play with that little bit of a broken twig.

我微笑着看你玩那一段小小的树枝。

They may be produced for almost any shaft angle.

他们可能在制作中几乎任何一个轴角。