valve oil
导读:valve oil读音音标
英 [vælv ɔil]美 [vælv ɔɪl]
valve oil意思解释
释义阀油; 英英释义 Valve oilValve oil is a lubricant for valves of brass instruments. It is t
英 [vælv ɔil]美 [vælv ɔɪl]
valve oil意思解释
释义阀油; 英英释义 Valve oilValve oil is a lubricant for valves of brass instruments. It is t

valve oil读音音标
英 [vælv ɔil]
美 [vælv ɔɪl]
valve oil意思解释
释义
阀油;
英英释义
Valve oilValve oil is a lubricant for valves of brass instruments. It is typically mostly mineral oil with a small amount of other ingredients.
双语例句
A calibration valve oil for hydraulic shield safety valves was formulated by a base oilobtalned from the distillate of a deep-refining paraffinic crude with qualified additives.以深度精制的石蜡基馏分油为基础油,添加具有改善油品性能的添加剂研制了液压支架安全阀校阀油。
