条件事件

After analyzing their calculation principle, the authors believed that the reason for these differences was that the prerequisite calculating the stable-state geothermal temperature filed was untenable in some areas with possible unknown underground heat events, then the thermal Curie point isotherm derived from this method would not show the actual Curie point isotherm in such areas.

笔者认为造成这种差异的主要原因在于，在有可能存在未知热事件的地区，计算稳态地温场的前提条件并不成立，因而由这种方法计算出来的热居里面在这些地区并不能真正反映居里面的深度，从而形成了它与磁居里面的显著差异。

Secondly, on the base of Jarrow's(1997) credit rating mitigation matrices estimating approach, this dissertation focuses on the macro economic's influntion and assumes credit rating mitigation is Non-homogeneous Markov Chain conditional on macro economic risk factors.

最后以Duffie和Singleton(1999)的基于违约强度的市值回收公司债券定价模型为基础，在信用评级迁移为条件Markov链的假设下，使用带跳跃的均值回复过程描述信用评级迁移事件，建立公司债券定价模型，进而利用带跳跃均值回复过程的良好性质解决风险中性期望问题，求得公司债券价格的显式解，得到每一信用评级公司债券的信用价差。

Breath, muscle contraction of the buttocks; arch body, as far as possible to hold his head, right leg straight towards the ceiling (peg-leg knee in order to avoid muscle tension).

呼气，收缩臀部肌肉；拱起身体，尽量抬起头来，右腿伸直朝向天花板（膝微屈，以避免肌肉紧张）。

The cost of moving grain food products was unchanged from May, but year over year are up 8%.

粮食产品的运输费用与5月份相比没有变化，但却比去年同期高8％。