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- A clothoid curve is used with its fine feature for the shape of transition section between spherical head and cylindrical shell of pressure vessel. 利用回旋曲线的优良特性，将其做为压力容器部分半球形封头与圆柱筒体之间的过渡曲线，实现了在连接边缘上无附加边缘应力的光滑连接。
- The cold forming process of large diametral spherical head used in high pressure vessel is an adranced technology of forming.This cold forming process possess many characteristics. 摘要大直径高压球封头冷压法是一项先进的成形工艺。
- Elastic Stress Analysis of Thick Spherical Head 厚壁球形封头的弹性应力分析
- Application of Pin with Spherical Head in Tribology 球面销试样的摩擦学应用研究
- spherical head without folded edge 无折边球形封头
- She nestled her head on his shoulder. 她将头依偎在他的肩上。
- Special Machine Tool of Double Side Face Process for Spherical Head Pin 球头销双端面加工专用机床
- The deer lowered its head to drink from the pond. 鹿低下头去喝池塘里的水。
- He gave the little boy a clout on the head. 他在那小男孩的头部打了一下。
- I saw the small girl topple over and hit her head. 我看见那小女孩栽了一跤，碰着了头。
- I was dazed by the blow on my head. 我的头挨了一击而觉得晕眩。
- She leaned her head back and whispered the news. 她向后仰着头，小声说出了这个消息。
- The horse kicked its fallen rider about the head. 那匹马乱踢从它背上掉下来的骑手的头部。
- The oil-lamp needs a new globe, spherical lampshade. 这油灯需配个新的圆灯罩。
- A price of $1000 was set on the jewel thief's head. 悬赏1000美元抓住这个珠宝窃贼。
- As I was waiting for a bus a brick fell on my head. 当我在等公共汽车时，一块砖头落到了我的头上。
- He because of bashful but low head. 他因羞愧而低下了头。
- She greeted us with a nod of the head. 她向我们点点头打招呼。
- He was sitting with his head buried in a book. 他坐着埋头看书。
- large diametral spherical heads used in high pressure vessel 大直径高压球封头
