Standard duty cycles are listed for each valve type and are upgradeable to extended cycles as indicated.
每种阀门类型中列出的标准工作循环都可以升级成所示的更大的循环。
Substantial construction, working principle and practical maintenance method of revolving valve type power steering gear is presented in detail.
详细地介绍了转问式动力转向器的具体结构、工作原理和具体维护方法。
Valves have been specified as Ball valve type, however the Contractor may offer an alternative recommendation, subject to approval by Client.
阀门类型规定为球阀，但承包商可提出不同建议，由业主批准。
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