retaining rings是什么意思 retaining rings怎么读
retaining rings的用法和样例
- This article has described expanding method for repairing the concave retaining ring caused by the hydraulic bulging.
详细介绍了用扩冲法对液压胀形出现凹形的护环进行修复的方法。 - The die and eqiupment of internal pressurized expanding retaining rings and double cone wedge-reaming die were also studied.
对内增压扩胀护环的装置和双锥面楔块扩孔模具进行了研究。
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