体积不变 meaning in Chinese

constancy of volume

That is , if a ball flattens down 2 times as much as normal , it will have to get 2 times as wide to keep its volume
也就是说如果它的高度压扁到比平时水平低2倍，那么它的宽度也应该相应的扩大2倍来保证体积不变。
Abstract : die structure based on the process of forming small fillet radius is introduced , and deduced the formula according to the principle of volume invariably
文摘:介绍形成小圆角半径的圆孔翻边模具的结构特点，按体积不变的原则，推导了计算公式。
To analyse stretch bending of narrow strip by numerical calculation , taking the loading history into account , the deformed zone was divided into many elements to determine their strain by the condition that constant volume remains in deformation
摘要在考虑加载历史的情况下，为采用数值方法研究窄板拉弯成形，将变形区划分成若干个单元，按塑性变形体积不变条件，确定单元应变。