急变 meaning in English

acute transformation
leap
saltus
surge

Can be support a great change of temperature differences
可承受温差之急变。
Inner containers of the vacuum flask . thermal shock . test method
保温瓶瓶胆耐热急变测试方法
We are facing the most acute economic problems for many years
近日世局急变，现在我们要面临更大的考验。
Test method for ceramic insulators of spark plug . test method for thermal shock resistance
火花塞瓷绝缘体试验方法.耐冷热急变性能试验方法
The deep conformations of the lithosphere controlling the swerving of the geochemical steep zone
地球化学急变带急转弯变化与深部构造效应

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