Introducing the background, content of port facility security, and its enforcement in China.

介绍了港口设施保安的背景、内容及其在中国的实施情况。

youdao

Introducing the background, content of port facility security, and its enforcement in China.

介绍了港口设施保安的背景、内容及其在中国的实施情况。

youdao