查询词典 barrier

Customs barrier; tariff walla door-like movable barrier in a fence or wall .

篱笆或墙上的一个像门一样的可移动的障碍物。

The results of the TEM showed the same respiration epithelium in the inside gill and the gill filament, it is flat, the cytoplast of the epithelium contained of the rough endoplasmic reticulum, vacuole and mitochondrion in rich; the blood-gas barrier is formed of the monolayer epithelium, the endothelial cell and the basilar membrane between the both, following the development the blood-gas barrier attenuate gradually.

电镜结果表明花背蟾蜍外鳃与内鳃具有相同的呼吸上皮，为扁平状，上皮细胞质中富含粗面内质网及空泡和线粒体；气血屏障由由单层上皮细胞，内皮细胞以及二者之间的基底膜构成，随着个体的发育，气血屏障逐渐变薄。

The impact of wind barrier of natural landform and wind barrier of artificial Hippophae rhamnoides on the plants restoration in flat of dumping site of opencast coal mine in the semi arid was investigated through the observations on the plants in the different sectors of dumping site, field experiment and laboratory analysis.

以霍林河露天煤矿为例，通过对排土场不同地段植被的观察、野外小区实验和室内分析的方法，调查研究了天然地形风障以及人工沙棘风障对半干旱地区露天煤矿排土场平台植被恢复状况的影响。

The empirical curve has since always been the enterprise uses for to analyze the market competition tendency and the development correspondence strategy method, and the experience which accumulates by the enterprise elders takes the main competition weapon, however the science and technology flies suddenly the progress, the enterprise defends stubbornly already has the experience instead to become the barrier which the enterprise develops, therefore in under the dispatch change environment, the experience and the extant channel foundation structure instead becomes the barrier which most difficult to overcome, the success enterprise must establish to the strategy direction sense of smell and continues the vicissitude management system to be able to survive.

一直以来经验曲线是企业用来分析市场竞争趋势及发展对应策略的方法，并以企业长年积累的经验作为主要竞争武器，然而科技的突飞进步，企业固守既有经验反而成为企业发展的障碍，因此在调度变化的环境下，经验及现存通道基础结构反变为最难克服的障碍，成功的企业要建立对策略方向的嗅觉和持续变迁管理体系才能生存。

In order to understand the energy dependence of the dynamical barrier, we pay a great attention to study the neck formation and shape deformation during the dynamic lowering of the barrier.

为了进一步理解动力学势垒的能量依赖，研究了颈部的形成和体系的动力学形变，发现这是促使动力学势垒降低的主要原因。

So it is suitable for higher receiving point. T-shaped structure has a good reducing noise effect at the area lower than 2m behind the noise barrier. The insertion loss is between 1.7 and 2.4dB higher than that of the erective noise barrier.

在屏障后50m距离、高度20m的插入损失仍能达到3.4dB，比直立形高出3.2dB，适合用于防治高度较高的噪声敏感点噪声。

The insertion loss is 3.4dB at the receiving point 20 height and 50m far behind the noise barrier, which is 3.2dB higher than the erective noise barrier.

模拟结果显示：Y形分叉型顶部结构在声影区较高高度具有较好的降噪效果。

The insertion loss is 14.5dB behind the noise barrier at 2m high and 30m far, and the additional insertion loss is 4.3dB higher than that of the erective noise barrier.

仿真模拟结果显示：多重楔形结构相对于直立形声屏障具有较好的降噪效果。

Firstly, we set a barrier to the underlying asset price under the assumption of common Asian options, the average period begins at the first time when the underlying price hits the barrier. We give a closed-form formula for the Asian call options price with fixed strike price in the case of continuous geometric average and in the case of discrete geometric average.

首先，在其它假设条件与一般亚式期权相同的条件下，对标的资产的价格设置了一个障碍，当标的资产的价格第一次越过障碍时，平均周期开始，得到了连续和离散两种情况下，具有固定执行价格的几何平均亚式看涨期权价格的封闭解。

The glassiness barrier layer mixes glass dust and mill addition into slip glaze, 50-180 um barrier layer is prepared by painting slip glaze on the surface of stainless steel, components of the glass dust according to the percent by weight comprises SiO2 37-40, B2O3 11-14, one or two kinds of Na2O and K2O18-20, one or two kinds of BaO and SrO 3.5-6.5, one or two kinds of Al2O3 and Cr2O3 2.5-10.5, one or two kinds of residues such as CaO, CaF and Na3AlF6, and the mill addition comprises agglomerants such as kaolin, borax, sodium nitrite and the like, adhesive agents such as CMC, PVA and the like and water.

该玻璃质壁垒层是将玻璃粉和磨加物混合成釉浆，涂在不锈钢表面制备50-180μm涂层，玻璃粉的成分按重量百分比：37-40 SiO 2 ，11-14 B 2 O 3 ，18-20 Na 2 O、K 2 O中的一种或两种，3.5-6.5 BaO、SrO中的一种或两种，2.5-10.5 Al 2 O 3 、Cr 2 O 3 中的一种或两种，余量CaO、CaF、Na 3 AlF 6 中的一种或多种；磨加物包括高岭土、硼砂、亚硝酸钠等粘结剂、CMC、PVA等密着剂和水。

Neither the killing of Mr Zarqawi nor any breakthrough on the political front will stop the insurgency and the fratricidal murders in their tracks.

在对危险的南部地区访问时，他斥责什叶派民兵领导人对中央集权的挑衅行为。

In fact,I've got him on the satellite mobile right now.

实际上 我们已接通卫星可视电话了