氨压机是氮精制系统的核心设备，其运行工况的优劣直接决定着整个系统能否长周期安全运行。
The ammonia compressor is core equipment in the ammonia purification system. Its operation situation directly decides if the system is safely operated in longer work-up period.
买方应在适当的时候提供所有的设施，并确保设备安装和工程正确运行所需的工况能够实现。
The Purchaser shall provide in good time all installations, and ensure that the conditions necessary for the erection of the Plant and for the correct operation of the Works are fulfilled.
转炉烟罩是转炉炼钢过程中的主要设备之一，转炉烟道汽化冷却的运行工况随转炉冶炼工艺而周期性、急剧地变化。
The chimney of converter is one of the main equipment in steel-making factories. The boiloff and cooling of cooling water in the chimney tubes change with smelting process rapidly and periodically.
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