The fall in revenue comes when TfL is struggling to complete an ambitious project to upgrade the underground network and provide new services.
大伦敦交通委员会本来准备升级地铁线路并提供新的服务，但收入的下降打乱了这项宏伟的计划。
The locals suspect underground gas seepage which causes motorists to fall asleep...
当地人怀疑是地下气体泄漏致使司机在驾驶时入睡。
In June 2009, illegal underground excavation for a parking garage in Shanghai caused the 13-story building under way next to it to simply fall over.
2009年6月，因非法开凿地下车库，导致临近它的一栋13层建筑物整体倾倒。
Roof fall accident is one kind of dangerous accidents happened at underground mines and underground pressure management is the main task of mining safety management.
冒顶片帮事故是地下矿山危害最为严重的事故，矿山地压管理是地下开采矿山安全管理的重要任务。
The block which will be the first of caving rocks from free surface and lead to more caving or side-fall in underground work is known as "critical rock".
地下工程中临空面上首先冒落并引发其他岩块冒落或片帮的块体称作“危石”。
The block which will be the first of caving rocks from free surface and lead to more caving or side-fall in underground work is known as "critical rock".
地下工程中临空面上首先冒落并引发其他岩块冒落或片帮的块体称作“危石”。
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