常見例句The cloven hooves are sharp edged, elastic and concave.蹄鋒利，呈凹形，富有彈性。This article has described expanding method for repairing the concave retaining ring caused by the hydraulic bulging.詳細(xì)介紹了用擴(kuò)沖法對(duì)液壓脹形出現(xiàn)凹形的護(hù)環(huán)進(jìn)行修復(fù)的方法。 返回 Concave shape