该项目还必须由美国联邦航空管理局和美国陆军工程兵部确保批准。

The project must also secure approvals from the Federal Aviation Administration and the U. s. Army Corps of Engineers.

youdao

该项目还必须由美国联邦航空管理局和美国陆军工程兵部确保批准。

The project must also secure approvals from the Federal Aviation Administration and the U. s. Army Corps of Engineers.

youdao