内部装饰阀的设计，以确保使用寿命长，避免不必要的维修。
Internal valve trim is designed to ensure long service life and avoid unnecessary maintenance.
当重要备件数量低于安全库存值时，立即报告维修主管以便及时采购，从而避免不必要的停机。
Maintenance Technician immediately reports to Maintenance Supervisor for re-order in case any critical parts shortage comes so as to prevent unnecessary and avoidable downtime.
提高机器的可靠性，避免为生产增加不必要的维修费用和影响正常生产。
Improve the reliability of the machine for production, avoid unnecessarily increase of the cost of maintenance and affect the normal production.
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