This article introduced the variable cross section liner dolly design to solve the tapered long-span lining construction of JiaHua-DaPing tunnel in ChongQing.
本文介绍变断面衬砌台车设计，用以解决重庆嘉华大坪隧道变断面大跨度衬砌施工。
Also, without any casing or liner installed, selective treatments or remedial work within the reservoir section are more difficult.
另外，在没有安装任何套管或衬管的情况下，在储层段的选择性处理或补救作业则更为困难。
Since I have a liner at the bottom , it is necessary to keep a floating heater to prevent a certain section from freezing to allow gases to escape.
由于我的池子加了衬底，所以同时我也使用一个漂浮的热源，这可以保证我的水体不致于全部冻结以利于气体的流通和沼气外泄。
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