The water hammer in a pressure pipe in prototype can be in terms of theory simulated in a model, based on the gravity similarity and elastic material similarity.
理论上讲，按重力相似准则设计模型，并保证模型材料与原型材料的弹性相似，即能在模型上模拟原型的水击现象。
In mining engineering, strata models are often simulated by similar material simulation model, rock bending deformation and fracture damage is the serious problem.
而在采矿工程中，相似材料模拟的往往是层状模型，岩层的弯曲变形和断裂破坏是关键问题。
Both upsetting and processes are simulated by using plasticine as model material, the evolution process of the cavities in the cylinder is observed.
用塑性泥模拟了圆柱体的镦粗和压扭工艺，观察了工件内部孔洞性缺陷的演变过程。
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