Rock burst is a kind of catastrophe during the excavation in underground projects. It is a process of energy release and rock block casting.

岩石冲击是地下工程开挖过程中的一种灾害，它在抛掷岩石过程中，表现出能量释放现象。

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The numerical simulation of thermal stresses and deformation of an engine cylinder block casting was carried out by FDM/FEM integrated system.

对发动机气缸体铸件从浇注完到开箱落砂后的铸造过程应力场进行计算机数值模拟。

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The test of water simulation on the original running system verifies shows that unreasonable original running system causes blow hole in 495A diesel engine block casting.

通过对缸体原浇注工艺的水力模拟，发现原浇注工艺不合理是造成495A缸体产生缺陷的主要原因。

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Rival political parties have joined forces to block Mr Roh from launching the national referendum, casting doubt on whether the vote will take place in December at all.

ECONOMIST: The president calls a referendum on his fitness for the job