This requires design concepts that provide thermal growth flexibility while reacting large torques, separating loads and external ducting loads.
这就要求设计概念，提供热增长的灵活性，同时反应，大扭矩，分离负荷和外部管道负荷。
2
The intake system mainly includes the air filter, intake ducting, the carburetor, and the intake manifold. Some engines have supercharger in the in take system.
进气系统主要包括空气滤清器、进气道、化油器和进气歧管。一些发动机在进气系统中有增压器。
3
Fixed railway installations. compact ducting in reinforced concrete for electric traction cables. straight units.