Method Z2 - intermediate casingend face with top view door.
Z 2制法——中间机壳端面带有上端检视门。
2
End face with a gap, no boss butt is refers to the upper and lower casing left a certain gap between the upper and lower main chord rod end face at the same time contact.
端面有间隙、无凸台对接是指在上、下套管之间留有一定间隙，上、下主弦杆端面同时接触对接。
3
The casing is thus free to yield to thermal expansion by moving forward on special slide elements between the front-end brackets and the front bearing pedetal.