| 释义 |
Concave shape
基本英英近义反义例句
凹形
Noun:
a shape that curves or bends inward近义词 incurvation内曲incurvature内曲concavity中央凹陷
The cloven hooves are sharp edged, elastic and concave.蹄锋利，呈凹形，富有弹性。
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。 |