So it is necessary to estimate quantitatively the radiation effect in the thermal analysis of turbine engine under high temperature.
氧化锆、陶瓷等涂层材料对热辐射是半透明的，因此，高温下涡轮发动机的热分析需要考虑涂层内辐射换热的影响。
An effective method has not been developed yet of quantitatively estimate signal-to-noise ratio of seismic record.
如何定量地估算地震记录的信噪比，至今尚未见到一种行之有效的方法。
We defy the available methods to estimate them quantitatively.
我们不能采用现有的方法进行定量估算。
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