适应建筑节能等政策的要求，研制了一种轻骨料混凝土永久性砌模。
With the implementation of the policies about energy efficiency in buildings, a sort of permanent block as forms with lightweight aggregate concrete was developed.
在热压模缎中，模具失效的主要模式是腐蚀作用、热疲劳、机械疲劳和永久性即塑性变形。
In hot impression die forging, the principal modes of die failure are erosion, thermal fatigue, mechanical fatigue and permanent (plastic) deformation.
在热压模缎中，模具失效的主要模式是腐蚀作用、热疲劳、机械疲劳和永久性即塑性变形。
In hot impression die forging, the principal modes of die failure are erosion, thermal fatigue, mechanical fatigue and permanent (plastic) deformation.
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