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Internal upset taper design of a drill pipe based on stress concentration analysis
基于应力集中分析的钻杆内加厚过渡结构设计
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- 相关词组
- drill downvt.向下钻取数据;
- sharp drill尖钻头
- rock drilln.凿石器;凿岩机;
- stop drill钻头
- drill pipe钻杆;
- drill stem钻杆;
- sensitive bench drill高速手压台钻
- shoe drill靴式开沟播种器
- shank of drill钻头柄
- shell core drill筒形扩孔钻
- fire drilln.消防演习
- land drill陆上练习;
- electric drill电钻;
- pneumatic drill风钻，气动排种式播种机;气钻;
- drill bit钻头;钎头;
- drill pressn.钻床;
- seed drill harrow条播机耙
- auger drill螺旋钻
- hand drill手钻;手摇钻;
- semisubmersible drill rig半潜式海上钻探设备
- 今日热词
- 热门搜索
- deliberately adj.故意的;从容的;adv.不慌不忙地;
- defeat v.击败;使困惑;使失败;否决;难倒;失利;n.失败;战败;击败;
- betray v.出卖，辜负;背叛;流露出;
- persuasion n.劝说，说服（力）;信仰;
- mikey 麦奇
- foresee vt.预知，预见;有先见之明;
- Game Master 游戏大师;游戏管理员;游戏主持者;游戏修改大师;游戏主持人;
- information n.消息;数据;问讯处;
- north n.北方;北部;（美国南北战争时与南方作战的）北部各州;北方发达国家（尤指欧洲和北美各国）;adj.北方的;北部的;朝北的;（风，光线）来自北方的;
- arrow n.矢，箭;箭状物;箭头记号;[天]天箭座;
- where did you go 你去哪儿了;
- minimum adj.最小的;(数量)极少的;adv.最低;
