They called for the immediate release of hostages. 他們要求立即釋放人質(zhì)。
If the increased pressure is caused by thermal expansion, the pressure will immediately be relieved and the system will return to the set pressure. 如果壓力增加，則說(shuō)明原因就是熱膨脹，此時(shí)要立即釋放壓力，讓系統恢復到設置壓力上。
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