At night or on weekends, when there is plenty of available power, lake water is pumped electrically through big pipes into a second reservoir 140 meters above the main reservoir.
在晚上或周末，当电力足够用，湖里的水通过管道泵入主水库140米以上的第二个备用水库。
The paper presents the design criteria and method for arresting crack and burst of the internal pressured vessels of big pipes with circular surface crack by arched strip and wound wire.
本文介绍了含有表面环向裂纹的内压简体及大型管道采用轴向加弧形务板与钢丝缠绕的止裂、抑爆设计原则及设计方法。
Repeatedly cutting open the road surface to repair various types of underground pipes has been compared to a chronic disease tormenting many big cities.
城市路面维修时， 一而再， 再而三地发生地下管道割裂的现象，引起的慢性疾病折磨着许多大城市。
This essay also introduces some installation methods of rain cups and pipes suitable to the big house surface draining rain through pressure flow rain drainage system.
介绍了适用于大屋面雨水排放的压力流雨水排水系统中雨水斗和管道的安装方法。
Plugging leaky pipes would be a start: they cause some big cities in the Middle East and Asia lose up to 60% of their water.
水管堵漏就是好的开始：漏水水管使中东和亚洲的大城市水流失量达60%。
The jammed pipes were usually discarded as useless, which caused a big loss of economy.
传统的处理方法是将这些堵塞的油管报废，结果造成很大的浪费。
Many main vapor pipes in oil refineries have long diameter and big weight, so the pipes often crack on the common supporters. A new sliding supporter is designed to solve the problem.
炼油厂许多主蒸汽管线，直经和质量较大，管线在管架上常被拉裂。
The drainage pipes are not big enough to discharge heavy rains and the excessive water comes out of the manhole and flows into the warehouse.
暴雨时，由于雨水排放管太细，雨水来不及排放所以从检修口倒灌回仓库。
Pipeline inner loop welder is applicable for big-caliber pipeline welding in construction procedure to joint the ends of pipes and fulfill roots welding.
管道全位置自动内焊机适用于大口径管道焊接施工过程中组对管口、完成根焊。
The more suitable excavation construction methods and auxiliary measures such as big steel pipes, face grouting reinforcement and compensation grouting are selected by various comparison analyses.
对主要施工方案进行优化，并选取超前大管幕、掌子面注浆、补偿注浆等辅助措施；
The more suitable excavation construction methods and auxiliary measures such as big steel pipes, face grouting reinforcement and compensation grouting are selected by various comparison analyses.
对主要施工方案进行优化，并选取超前大管幕、掌子面注浆、补偿注浆等辅助措施；
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