Mountain park is a natural green barrier and natural oxygen bar of a city, It is people away from the noisy cities to find the best place to a piece of pure land.

It has three reservoir sands: the barrier bar of Carboniferous Taiyuan Formation, delta-plain distributary channel sand of Permian Shanxi Formation and fluvial facies channel sand of Lower Shihezi Formation. The reservoir sands are low porous, low permeable and tight.

气田具有石炭系太原组障壁沙坝、二叠系山西组三角洲平原分流河道砂和下石盒子组河流相河道砂3套储集体，储集体为低孔、低渗、致密性储层；

The texture maturity of sandstones is a useful index for identifying the paleogeographic environments. The barrier bar sandstones are of high texture maturity, coast and tidal flat sandstones are of moderate, and lagoon sandstones are of lower.

砂岩结构成熟度可作为判别古地理环境的一个指标，障壁沙坝砂岩结构成熟度高，滨海及潮间坪砂岩结构成熟度中等，泻湖砂岩较差。

The "Jiapila Formation" consists of carbonate platform tidal-flat ( including tidal channel sand) deposits, barrier bar deposits and mud deposits formed in a hot environment, which contain records of seismic events.

甲丕拉组为干热环境下的碳酸盐台地潮坪（包括潮汐水道砂）沉积、障壁砂坝沉积和滨外粉砂、泥沉积，其中有地震事件记录。

The utility model relates to an automatic lifting control circuit for a vehicle barrier bar.

本实用新型涉及一种车辆挡杆自动起落装置。

This paper presents a capacitance method which is based on that the resistivity of the material with uniform doping has an one-to one correspondence relation to the barrier capacitance when a junction at fixed biasing voltage is formed.

本文介绍一种基于固定偏压下，均匀掺杂材料的电阻率与其形成结时的势垒电容相对应的电容测量法。

Test and Data Processing of Emitter Junction Barrier Capacitance C Te of Transistor

晶体管发射极势垒电容C（Te）的测试及数据处理

The optimum numerical solution of the varactor model "anomalous change in P+-N junction's forward barrier capacitance" has been presented with CAD.

用计算机辅助设计，给出P~+-N结正向势垒电容异常变化的变容管模型的最佳值解。

The Optimization of the Varactor Model Anomalous Chang in P~+ N Junction's Forward Barrier Capacitance

P~+-N结正向势垒电容异常变化变容管模型的最佳化

So by integrated analyzation, PLA sand barrier has prodigious development potential and widely popularization and application foreground.

综合分析认为PLA沙障具有很大的发展潜力及广阔的推广应用前景。

Vary temperature, barrier height, and potential energies.

不同的温度、势垒高度和潜能。

By changing the thickness of organic and inorganic layers or adjusting the relative height of barrier potential at organic-inorganic interface, we can control the emission zone and obtain different emission from each layer.

对所制备的3种结构器件的EL进行了比较，研究了结构对发光起因的影响，揭示通过调节有机层和无机层厚度以及界面势垒高度可以实现对发光区域的控制。

A trapezoidal barrier potential was used to model Al Al 2O 3 ferromagnetic metal ( Fe, Co, Ni and Ni 80 Fe 20) biased tunnel junctions.

用梯形势垒模型计算偏置Al Al2O3铁磁金属（Fe，Co，Ni和Ni80Fe20）隧道结的IV曲线，通过与结在77K温度下的实验IV曲线拟合决定了结的势垒参数。

Microadding a appropriate amount of rare-earths oxide can decrease leakage current by means of raising the height of barrier potential and increasing grain resistivity of zinc oxide.

添加微量稀土氧化物通过增大势垒高度和氧化锌晶粒电阻率来减小泄漏电流。

The formation of ptcda/ p-si heterojunction barrier potential and the analysis of transmission mechanism for its electric current

PTCDA/p-Si异质结势垒的形成及电流传输机理分析

My father danced with his granddaughters and then the band began to play the "Beer Barrel Polka."

父亲开始和他的外孙女跳舞，乐队演奏起了“Beer Barrel Polka”。

My father danced with his granddaughters, and the band began to play the "Beer Barrel Polka".

在父亲与孙女们跳舞时，乐队开始演奏起了“啤酒桶波尔卡”。

As he sat in his easy chair, I would fumble through Lady of Spain and Beer Barrel Polka.

他躺在安乐椅里，我则笨拙地拉完西班牙女郎和啤酒桶波尔卡。

Flow Field Analysis of Compulsive Spiral Flow in Finishing the Inner Surface of Rifle Barrel

强制螺旋流对身管内表面光整加工的流场分析

His word was a double-barrelled compliment. It implied that she was an agreeable female, and also her husband had a clerical appearance.

他的话是双重意义的恭维。一方面表示她是一位可爱的女性，另一方面表示她丈夫具有牧师风度。

Remobilization of Nitrate in Rice Leaf Vacuoles Measured with Double-Barrelled Nitrate-Selective Microelectrodes

微电极法测定水稻叶片液泡中硝酸根离子的再调动