万杯洁海词词典

Concave shape

万杯洁海词词典

同根派生

     

英汉例句

  • 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。