vallation

1 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。

2 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。

3 Under the c ondition of WTO, technology and tariff vallation make pace for law vallatio n.

在WTO框架下, 技术壁垒、关税壁垒让位于法律壁垒.

1 筑城

fortification

2 垒

base bag

3 堡垒

hold strength fort citadel fieldwork sconce bulwark fastness schloss work castle fortress stronghold bastion vallum keep defence fortification rook rampart alcazar

4 壁垒

barrier rampart bulwark vallum mound circumvallation