However, it is difficult to select suitable material of model pipes for larger modelscale.
但对于较大模型比尺,很难找到理想的模型材料。
2
There are truly an immense number of small items on the full - scale ship that cannot be represented at modelscale.
在模型上不能表征的真实飞机上的细小项目实在太多了。
3
The modelscale and the ratio of prototype to model for various hydraulic elements are selected in the light of theory of unsteady flow similarity for hydraulic models.