Conclusion: Tiotropium bromide is a stable first-line maintenance treatment of COPD, one of the drugs.
结论：噻托溴铵是稳定期COPD一线维持治疗的药物之一。
It features an in-line maintenance design that offers serviceability of all operating parts without disturbing the piping system.
联线维修设计，在不影响管系统工作的情况下，就可对所有操作部件进行检修。
The different models of live line maintenance management were compared and analyzed for the actual condition of distribution power system in Heilongjiang power grid.
结合黑龙江省电网配电系统实际情况，针对目前带电作业管理模式进行了比较分析。
The structure and principle of electric buoy level gauge used for PET plant reactor was introduced. The on-line maintenance processing steps of the typical fault was analysed.
介绍PET装置反应器上使用的电浮筒液位计的结构、原理，并对其典型故障进行在线维修的处理步骤进行了分析。
A direct operation way of replacement line breaker on load by using line jumper was introduced, which is in accordance with the safety codes and the hot line maintenance rules.
阐述了使用线路跨接器带负荷更换线路断路器的直接作业方法。该方法符合安全规程和带电作业规程的要求，具有实用性。
A direct operation way of replacement line breaker on load by using line jumper was introduced, which is in accordance with the safety codes and the hot line maintenance rules.
阐述了使用线路跨接器带负荷更换线路断路器的直接作业方法。该方法符合安全规程和带电作业规程的要求，具有实用性。
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