green barriers绿色壁垒;绿色贸易壁垒;壁垒;环境壁垒
Physical Barriers物理屏障;贸易壁垒;白蚁防治方法一物理屏障
language barriers语言障碍
market barriers市场壁垒
Cyclic Barriers阻碍循环;障碍循环
no barriers无障碍;没有任何障碍
regional barriers地区壁垒
Invasion Barriers侵入界限;侵入边界
structural barriers结构性障碍
Theoretical analysis on standards barriers.
技术标准壁垒的理论分析。
The larger migration barriers of labour from rural to urban are, the slower the process of urbanization will be.
劳动力从乡村向城市的流动障碍越大,城市化的进程越缓慢。
参考来源 - 劳动力流动、产业转移与城市发展研究The forth Part will be expounded barriers of public interest litigation system and its way out.
第四部分将阐述我国建立行政公益诉讼制度的障碍及其出路。
参考来源 - 我国监狱体制改革中监企分开问题研究（研究生论文）A parameter study on dynamics of the car and occupant and the performance of the barriers was carried out. Several important conclusions were drawn out and a new structure of barrier post was presented creatively.
通过改变不同的仿真参数(碰撞条件)，深入研究碰撞中轿车和乘员的动态响应和护栏的碰撞特性，得出了若干重要的结论并创造性地提出了一种新的护栏立柱结构。
参考来源 - 轿车与高速公路护栏碰撞事故分析及仿真研究N-COUNT（可数名词） A barrier is something such as a rule, law, or policy that makes it difficult or impossible for something to happen or be achieved. 障碍
Duties and taxes are the most obvious barrier to free trade.
关税及其他各种税是自由贸易最明显的障碍。
N-COUNT（可数名词） A barrier is a problem that prevents two people or groups from agreeing, communicating, or working with each other. 障碍; 隔阂
There is no reason why love shouldn't cross the age barrier.
爱情没有理由不应跨越年龄障碍。
N-COUNT（可数名词） A barrier is something such as a fence or wall that is put in place to prevent people from moving easily from one area to another. 栅栏; 围墙
The demonstrators broke through heavy police barriers.
示威者们冲破了警方的重重关卡。
N-COUNT（可数名词） A barrier is an object or layer that physically prevents something from moving from one place to another. 屏障
A severe storm destroyed a natural barrier between the house and the lake.
一场猛烈的暴风雨摧毁了房屋和湖泊之间的天然屏障。
N-SING（单数型名词） You can refer to a particular number or amount as a barrier when you think it is significant, because it is difficult or unusual to go above it. (数量) 大关
They are fearful that unemployment will soon break the barrier of three million.
他们担心失业人数不久将突破300万大关。