他和现在的许多孩子们一样，制作机械装置和模型。
Like many boys of today he made mechanical devices and models.
本文提出了一种计算机表达的机械零件模型。
A mechanical part model represented by computer is proposed in this paper.
而在机械世界中，并不普遍存在着类似于这种表现模型的概念的情况。
This concept of the represented model has no widespread counterpart in the mechanical world.
目的建立一新的分级机械脑损伤动物模型。
Objective To produce a new animal model of graded mechanical brain injury.
三维模型虚拟设计是机械设计的必然趋势。
Three-dimentional model virtual design is the tendency of mechanic design.
物理模型是现代机械设计中常用的方法。
Physical model is one of the most useful methodology often applied in modern machine design.
我们以非致死性机械创伤大鼠模型为观察对象，对这一指标进行检测。
We detect the hs-CRP in the non-lethal mechanical trauma rat model.
同时给出了操作者、主从机械手子系统的动力学模型。
The human operator, master and slave manipulator dynamic models are also put forward.
以机械振动建模为例，说明了所提出的模型辨识机的有效性。
As an example, the model identification of mechanical vibration is explained.
以机械振动建模为例，说明了所提出的模型辨识机的有效性。
As an example, the model identification of mechanical vibration is explained.
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