It can act as an interim key step of imaging complex structure, which plays an important role for ensuring quality of velocity analysis and depth migration.

它可以作为复杂构造成像的一个关键的中间环节，对于提高最终的速度分析质量和深度偏移成像效果是至关重要的。

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The Migration Act allows the immigration minister to "declare" or identify a third country to which asylum seekers can be sent.

BBC: Australia fails to find an asylum solution

Lawyers argued that because Chris Bowen, Australia's immigration minister, could not guarantee their protection, he had no power under Australia's Migration Act to send them to Malaysia.

ECONOMIST: The government hits a legal roadblock

Consistent with section 2(b)(2) of the Migration and Refugee Assistance Act of 1962, as amended, I hereby determine that assistance to or on behalf of persons applying for admission to the United States as part of the overseas refugee admissions program will contribute to the foreign policy interests of the United States and designate such persons for this purpose.

WHITEHOUSE: The White House