年度工具检查计划不能替代已制定的和已计划的预防性维护任务。
The Annual Tool Inspection Program does not take the place of established and scheduled Preventive Maintenance Tasks.
每周保持螺纹清洁和经常检查衬垫是否泄漏的形式的预防性维护是非常有益的。
Preventative maintenance in the form of weekly cycling to keep the threads clear and frequent checking of the packing for leaks are very beneficial.
如果对阀门进行定期检查，并且进行预防性维护，则阀门使用寿命会更长，操作性能也会更好。
If valves are periodically inspected and preventive maintenance done, the valve will last longer and operate better.
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