San Francisco's Public Utilities Commission knows the exact co-ordinatesd of every waste-water pump, its maintenance history and the likelihood of it failing.
圣弗朗西斯科的公共事业委员会清楚每条废水管道的精确坐标，维修记录，和出现故障的可能性。
Locomotive maintenance produces sludge, waste solvents, and cleaners that can cause air pollution and, if ignited, serious threats to human health.
机车维修产生的污泥、废溶剂和清洁剂也可造成空气污染，如果点燃，会严重威胁人体健康。
Protect and care for the assets of the hotel. Use our resources wisely. Eliminate waste. Ensure proper maintenance and repair of hotel property and equipment.
保护和照顾酒店的财产。资源要用得其所。减少浪费。确保妥善保养和维修酒店的物业和设施。
Construction waste is in the building or structure of the building, maintenance and demolition activities which are the building itself is useless or unnecessary discharge of materials.
建筑垃圾又叫建筑废弃物，是指在对建筑物、构筑物的建设、维护和拆除活动中产生的对建筑物本身无用或不需要的排出物料。
All golf course employees are trained in pesticide disposal, efficient water management, habitat maintenance, waste reduction, energy use, and environmental planning.
该球场的所有员工都将得到以下培训：农药处理，有效的水管理，球场维护，废物减除，能源使用及环境规划。
This trend brings considerable trouble in maintenance, and even sometimes the unnecessary waste of labor.
这样，就给维修保养带来了难度，有时还会带来不必要的人工浪费。
Saving energy and reducing consumption, without waste discharge, stable operation, reliable operation, convenient maintenance.
节能降耗，无三废排出，操作稳定，运行可靠，维修方便。
Pipeline leak detection location system is a typical device for pipeline maintenance, which can efficiently reduce the resource waste and the environment pollution caused by pipeline leak.
管道泄漏检测定位系统是目前管道泄漏检测中的一种典型装置，能有效控制管道泄漏引起的资源浪费和环境污染。
The road construction and maintenance in China was investigated and analyzed, then the amount of waste asphalt mixture occurred every year in China was estimated.
对我国道路建设及维修养护情况进行了调查和分析，估算了我国每年的废旧沥青混合料发生数量。
Compared to traditional technology, this technology has the advantages of high purification efficiency, no residual waste generation, and low maintenance costs.
与传统工艺相比，采用该方法具有净化效率高、无二次污染、运行成本低的优点。
After the improvement, mine slurry leakage from the imported seal and blocking in the siphon is eliminated to avoid the mine slurry waste and reduce maintenance times.
改进后，消除了进口密封漏矿浆及弯管内堵矿问题，避免了矿浆浪费，减少了检修次数。
Thus they can provide a clean vacuum over the entire vacuum range. Dry pumps require little maintenance and don't generate any waste material.
无油真空泵提供了完全洁净的真空环境，泵体本身无需保养，而且不会产生任何污染物。
Thus they can provide a clean vacuum over the entire vacuum range. Dry pumps require little maintenance and don't generate any waste material.
无油真空泵提供了完全洁净的真空环境，泵体本身无需保养，而且不会产生任何污染物。
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