如果石英表忽然发现走慢，很可能是电池能量不足造成的，您可以将手表送到维修点检测电量。
If the quartz watch suddenly found to walk slowly, it is likely that the battery energy shortage caused by, you can watch the watch to the maintenance point of detection.
此手册解释了X - STREAM氧气分析仪如何保存能量，每年如何节省数千美元，以及使维修成本降低了25%。
The brochure explains how the X-STREAM oxygen analyzer conserves energy, saving thousands of dollars per year, as well as lowering the cost of maintenance by 25 percent.
该工具包涉及到技术性能的各种方面，包括能量、照明、热舒适性、维修保养和室内空气质量等。
A variety of technical performance aspects are addressed such as energy, lighting, thermal comfort, maintenance and indoor air quality.
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