The pre-solicitation released this week is not a request for proposals from industry—it states that a draft Request for Proposals is forthcoming. Rather, it seeks feedback from industry and interested stakeholders about an "objectives and requirements" document that outlines the goals of the Mars mission.
双跑校验：分层验证确保业务平稳过渡
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Trump eyes Venezuela visit – but obstacles to his oil plan remain
This is quick because it's operating on a very small, localized part of the map.
（二）对正常运行的无线电台（站）产生有害干扰，经有关主管部门指出后，拒不采取有效措施消除的；