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- long helical drilling 长螺旋钻孔
- Methods: The root canal with root canal orifice burs and helical drilling bits were prepared in advance. 方法:采用根管口台阶状车针与螺旋型根管钻组合起来扩大根管。
- Methods:The root canal with root canal orifice burs and helical drilling bits were prepared in advance. 方法:采用根管口台阶状车针与螺旋型根管钻组合起来扩大根管。
- Basic structure and operation principle of the parallel grinder for helical drill point grinding is presented. 给出螺旋面钻尖刃磨机床的基本结构及其工作原理。
- The machine has long helical rotor blades, a powerful role in the shredding, the concentration of 12-16%, good quality pulp, Uniformity, saving energy and water. 本机具有多头螺旋叶片转子,有强大的碎纸作用,工作浓度为12-16%25,纸浆质量优良,均匀度高,节能节水。
- Objective: To introduce a new prefabricated post-and-core system, a helical drilling bit and a prefabricated post-and-core consisting of a root canal orifice bur which was designed by the author. 摘要目的:介绍一种由螺旋型根管钻、行设计的根管口台阶状车针、成桩核组成的预成桩核系统。
- Development of Helical Drill Point Grinders 几种螺旋面钻尖刃磨机床的研制
- After a long drill he told the squad to fall out. 操练了好半天之后,他让这个班解散了。
- Solution to Angles of Non-coaxial Helical Drill Point 非共轴螺旋面钻尖角度的求解
- There was a long lag in forwarding mail to us. 转寄给我们的邮件晚了很久才拿到。
- You can keep my book as long as you like. 我的书你要借多久都随你的便。
- Fruit juices ferment if they are kept a long time. 果汁若是放置很久,就会发酵。
- The beggar spun a long yarn about his misfortunes. 那个乞丐编造了一大篇自己如何遭遇不幸的故事。
- How long will our food supplies hold out? 我们的储粮还能维持多久?
- It was a long trudge up the hill. 那段上山的路很难走。
- Mr Jones has a long history of heart trouble. 琼斯先生有长期的心脏病史。
- Cream cakes are no long a luxury. 奶油蛋糕再也不是奢侈品了。
- It took a long while to do the work. 做这个工作花了许多时间。
- Between ourselves, that young man's hair is much too long. 就咱俩之间说说,那小伙子的头发实在是太长了。
- Dynamic Simulation of a Biglide Parallel NC Grinder for Helical Drill Point Machining 二并联数控螺旋面钻尖刃磨机床的动力学仿真