求翻译：它大量的以技术面目出现，因此常常会披上合法外衣，成为当前国际贸易中最为隐蔽、最难对付的非关税壁垒。由于其名义上的合法性、手段上的隐蔽性、内容上的复杂性，已经成为当代国际贸易中运用最广泛的贸易保护政策工具是什么意思？

A large number of technical features, so often put on the legitimacy, international trade, the most concealed, the most formidable non-tariff barriers. Due to the hidden nature of its nominal legitimacy, means, content complexity, has become the most widely used in current international trade policy

It has a lot of technology emerged, and are often will be appearance of legitimacy in international trade, the current most insidious, the most difficult to deal with the non-tariff barriers. Because of its name means the legitimacy, the hidden nature, content, and the complexity of the contemporary

It massive by technical appearance appearance, therefore can put on the legitimate coat frequently, becomes non-tariff barrier which in the current international trade is most covert difficultly, to cope with.Because in its nominal valid, in the method confidentiality, the content complexity, alread

It a lot of the technology emerged, often covered with legitimate coats, become the most subtle and the most difficult to deal with in the current international trade of non-tariff barriers. Because of its name, means of concealment, on the legality of the content on the complexity, has become the m

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