在此基础上提出了隧道衬砌火灾损伤等级的划分标准与耐火极限时间。
Then, the divide standard of damage grade and the enduring fire limit time of the tunnel lining caused by fire accident are discussed.
在经典极限下，导出了循环的有限时间热力学性能界限和优化准则。
The finite time thermodynamic performance bound and optimization criterion for these cycles are derived.
总剂量从沉降物抵达时开始就不断上升直到极限值(无限时间)。
The total dose increases continuously from the time of arrival of the fallout toward the limiting (infinite time) value.
总剂量从沉降物抵达时开始就不断上升直到极限值(无限时间)。
The total dose increases continuously from the time of arrival of the fallout toward the limiting (infinite time) value.
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