查询词典 barrier

The World Trade Organization was precisely acknowledged the technical trade barrier reasonable permitted its existence at the same time, simultaneously also saw the technical trade barrier unreasonable has at the same time formulated "Technical Trade Barrier Agreement", came the standard and limits various member nations the technical trade barrier behavior, guarded against stops appears to technical trade barrier abusiveness

世界贸易组织正是承认了技术性贸易壁垒合理的一面而允许其存在，同时也看到了技术性贸易壁垒不合理的一面而制定了《技术性贸易壁垒协议》，来规范和限制各成员国的技术性贸易壁垒行为，防止出现对技术性贸易壁垒的滥用

The first one is capital barrier, which means a large amount of initial capital for the perfect monopolizer. This prevents the common enterprise from entrance. The second is the technical barrier, i.e. the monopolizer is in control of certain technology and knack while other enterprises not, and then the market naturally become a monopoly market. Scale economy is the most studied technical barrier. The third one is law barrier, i.e. some exclusive patent rights are protected by the law. For example, patent and copyright are the monopolizations protected by the law. The fourth one is tactic barrier, even without any of the above mentioned barriers; it can also set up barriers through other ways, such as huge amount of advertisement investment.

首先是资本壁垒，即完全垄断企业的起始资本量很大，因此一般的企业难以进入；其次是技术性壁垒，即垄断者掌握了某种生产技术和诀窍，其他企业则没有，这个市场也就自然成了垄断市场，规模经济是一种被研究得最多的技术性壁垒；第三是法律壁垒，有些独家经营的特权是由法律所规定并受到法律保护的，专利和版权就是法律特许的垄断；第四是策略性壁垒，企业即使没有上述三种壁垒，也可以通过其他方式高筑壁垒，例如巨额广告投入。

The new non-tariff barrier system consists of technical barrier, environmental barrier, social barrier and moral barrier.

随着世界贸易组织对关税和传统非关税壁垒的约束，非关税壁垒形成以技术壁垒为核心的，包括技术壁垒、环境壁垒、社会壁垒和道德壁垒在内的新体系，成为当代国际贸易的新贸易壁垒。

It is still needed to do some work to determine the deformation parameter β2 for light odd-odd nucleus, like 6Li and to calculate all reaction channels by means of CDCC code simultaneously. It is important to measure the exclusive angular distributions of breakup fragments.In theory, the coupling channel equations have been deduced from one-dimensional to multi-dimensional barrier tunneling. The couplings between the entrance channel and the other channels have appreciable effects on sub-barrier fusion cross section. Instead of single fusion barrier,these couplings lead to a distribution of fusion barrier Dfus.

描述了已有理论，从简单的一维势垒穿透模型出发，引入多维势垒穿透和耦合道模型，证明入射道相对运动与碰撞核各种自由度的耦合导致熔合势垒的劈裂，较低的势垒有利于垒下熔合截面增强；给出了从熔合激发函数抽取势垒分布及从背角准弹激发函数抽取势垒分布的理论依据，以及它们的优缺点。

Based on the FDTD method,three different potential-barrier problems including rectangular potential-barrier,deltoid potential-barrier and syntonic potential-barrier are investigated.

在此基础上，计算模拟了三种不同的势垒如方势垒、三角形势垒和谐振势垒下系统的能量变化、概率变化，再现了量子隧道效应这一重要物理现象。

Mahabharata止观" on the roof were made a brief description of the six Guanyin:"Great Mercy Guanyin hell broke three barriers, the Road suffered the most, to use the 'Great Mercy'; Daiji hungry Road Avalokitesvara three barrier-breaking, the Road, hunger, thirst, to use the 'Daiji'; Lion Road fearless beasts Avalokitesvara three barrier-breaking, the mighty Project Altered Beast, to use the 'fearless'; Guanyin shines Daguang Asura three barrier-breaking, the Road suspicion suspect envy, to use the' weather '; Heaven Avalokitesvara husband three barrier-breaking humanity, humanity has the good sense, things slow V uppish said 'Heaven', rationale, see Buddha, saying that 'her husband';破天Road Avalokitesvara大梵three far-reaching impairment,'the Vatican' is a King, S Wang Hill.

摩诃止观》对天台宗六观音作了简要说明："大悲观世音破地狱道三障，此道苦最重，宜用'大悲'；大慈观世音破饿鬼道三障，此道饥渴，宜用'大慈'；师子无畏观世音破畜生道三障，兽王威猛，宜用'无畏'；大光普照观世音破阿修罗三障，其道猜忌嫉疑，宜用'普照'；天人丈夫观世音破人道三障，人道有事理，事伏憍慢称'天人'，理则见佛性，称'丈夫'；大梵深远观世音破天道三障，'梵'是天王，标王得臣。"

Combining the fluid mechanics in porous medium and the geometry, the author considers the artificial barrier as a filter cake, research on the vadose rule on the condition of the coercibility and the non-Newtonian fluid flow, establish the formula of artificial barrier pressure drop and thickness, probe the formula of the thickness of artificial barrier for the pressure in the fracture,the coercibility, the smallest stress of barrier and the rheological property of fracturing fluid.

结合渗流力学和几何学，将人工隔层视为滤饼，在对人工隔层中渗流规律的研究中考虑了流体的非牛顿性和人工隔层的可压缩性，建立隔离层压降与厚度之间的关系式，探索人工隔层厚度与缝内压力、人工隔层可压缩性、上下隔层最小主应力、压裂液流变性等之间的关系。

Part 1: Permeability of Exogenetic BDNF through placental barrier of pregnant rats and blood-brain barrier of fetus with transient uteroplacental ischemiaObjective To investigate the potential of BDNF to penetrate the placental barrier and get into the fetus and pass through the blood-brain barrier of fetus to play neuroprotective function in the condition of transient ischemia.

第一部分：外源性脑源性神经营养因子在宫内缺氧环境中对胎盘及胚鼠血脑屏障通透性的实验研究目的：探讨外源性脑源性神经营养因子在宫内缺氧环境下能否通过胎盘屏障进入胎鼠体内，再通过胎鼠血脑屏障进入胎鼠脑组织而发挥其生物功能。

Homogeneous or heterogeneous base material is selected; an alternately superimposed barrier layer and an alternately superimposed recessed layer are grown and formed at the extension of the base material; donor impurity and acceptor impurity are doped in the interface between the barrier layer and the recessed layer and in the interface between the recessed layer and the barrier layer, and the p type group III nitride material doped at a position selecting superlattice is obtained.

选择同质或者异质的基质材料；在基质材料上外延生长形成变换叠加的垒层和阱层，在垒层与阱层的界面和阱层与垒层的界面掺入施主杂质和受主杂质，得选择超晶格位置掺杂的p型III族氮化物材料，其中，每个生长周期的步骤为：生长带隙较宽的垒层，同时掺入受主杂质；生长施主杂质或受主杂质δ掺杂层；生长非掺的带隙较窄的阱层；生长受主杂质或施主杂质δ掺杂层；在N 2 气氛下对所得的选择超晶格位置掺杂的p型III族氮化物材料退火，即得目标产物。

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Therefore, it is necessary to study numerical methods which preserve the symplectic structure of the Hamiltonian system.

因此，研究保持哈密尔顿系统的辛几何结构特征的数值方法是必然的。

LED, one kind of photosource, will replace daily used incandescent lamp and fluorescent lamp in the near future.

LED是在不久将取代我们目前使用的白炽灯和荧光灯的光源，LED灯具的设计思路将会与传统光源灯具的设计思路有很大不同。