Continuous concrete wall is used in the air shaft structure, which is built with inversed construction method by using inner liner and transverse frame.
风井采用地下连续墙围护结构，通过内衬及横向框架逆作施工方法实现。
2
The valve component matches the gap of the shaft hole of the cooker cover liner and axially has a certain floating distance.
阀体组件与锅盖内衬轴孔间隙配合，且轴向有一定的浮动距离。
3
This paper presents the principle of stern stuffing seal, analyses the reason of water-leaking and provides in detail the technique of fitting operation on divided bronze liner of stern shaft.