vallation的用法和样例:
例句
用作名词 (n.)
- The green vallation was the main obstacle for the export of baisens because of the production manner of baisens and harmful organisms in baisens.
由于我国盆景生产的方式以及有害生物的问题,绿色壁垒成为我国盆景出口的瓶颈。 - After china open its procurement market, more attention should be taken on those uncompetitive manners because they are legal trade vallation.
待政府采购市场对外开放之后,再给予那些限制竞争的采购方式以更多的关注,发挥它们的合法贸易壁垒的作用。