Performance of hydraulic oils is very dependent upon the quality of base oil to ensure good filtration, trouble free operation and a long service life. ?
基础油的质量对液压油的过滤性能、液压系统的平稳运行和液压油的长寿命使用有着重大影响。
Dry-type transformers require minimum maintenance and provide long years of trouble-free service.
干式变压器的最低要求，并提供免费维修服务多年的麻烦。
This means that products are expected to always work "out of the box" and to be reliable in general use and to give long, trouble free service.
这意味着产品总是“可拆盒即用”的、具备可靠的使用并可以提供长期、免费的服务。
This means that products are expected to always work "out of the box" and to be reliable in general use and to give long, trouble free service.
这意味着产品总是“可拆盒即用”的、具备可靠的使用并可以提供长期、免费的服务。
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