To protect the core, and prevent a bigger problem, authorities had to vent some of that steam into the atmosphere, which means venting some of the radioactive particles along with them.
为了保护核心，阻止更大的问题，专家们必须放出一些水蒸气至大气中，这就意味着随之放出一些有辐射性的微粒。
The core can effectively avoid defects of vent by controlling quality of mold surface, and it can also be used in structure of castings which is like s hole as well as hole of intricate bore.
该型芯能用控制型芯表面质量的方式来避免铸件内孔中产生的系列疵病。
The jet flows from vent holes in a center-core igniter strongly influence the process of ignition in guns.
中心点火管传火孔射流场直接影响火炮膛内的点火传火过程。
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