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.詳細介紹了用擴沖法對液壓脹形出現(xiàn)凹形的護環(huán)進行脩複的方法。 返回 Concave shape