If not, a trade barrier has been raised.

如果不这样做的话，现有的贸易壁垒就无法减少。

Process and Production Methods; trade barrier; like product.

生产过程与生产方法；贸易壁垒；相似产品。

Trade barrier is broken gradually, country economy is more free.

贸易壁垒被逐渐打破，各国经济更为自由。

Trade Barrier; Substantial Rules; Procedure rules; Shortcomings and Improvements.

贸易壁垒； 实体规则程序规则； 不足与完善。

The environment worsens day by day, the green trade barrier is its realistic basis.

而环境日益恶化、绿色贸易壁垒是其现实依据。