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- With computer aided analysis the geometric features of internal gear hob are proved, which cutting edges are symmetral about datum axis,even along pitch circle of pinion,fitting in with involute. 通过电算分析，证明内齿轮滚刀切削刃具有关于基准轴的对称性、沿媒介齿轮节圆的分布均匀性、对渐开线的可拟合性等几何特征。
- Diameter of pitch circle of driving hole 传动孔节圆直径
- He has a large circle of friends. 他有一大群朋友。
- He has a wide circle of acquaintances. 他交游甚广。
- He has only a narrow circle of friends. 他交游不广。
- There is a circle of flowers around the statue. 塑像周围鲜花环绕。
- I have a circle of friends here. 在这里我有一群朋友。
- He looked around the circle of eager faces. 他看了看四周热切的脸庞。
- I never use a single worm on the hook, prefer a cocktail of worm and maggot. 我从不单用一只虫作钓饵，而喜欢用虫和蛆的混合物。
- She had swung round the circle of theories and systems without finding relief. 她对各种不同理论和体系都曾经接受过，但均未能从中找到慰藉。
- There are a lot of worms in the soil. 泥土中有许多蠕虫。
- A Precise Method for Mapping Pressure Angle in Pitch Circle of Cylindrical Involute Gear 圆柱齿轮分度圆压力角的精确测绘方法
- What he left behind after his resignation was just a can of worm. 他辞职后留下来的只是一大堆头痛的问题。
- Earthworms have no backbone, they are a kind of worm. 蚯蚓没有脊椎，是一种蠕形动物。
- Put the circle of bone inside some seal meant. 然后把它藏在海豹肉团中。
- A circle of fire surrounded the ship. 船被火网包围了。
- Youth Circle of Arts founder cum CEO. 青少年艺术坊创办人，总策划，总指挥官，专题讲师。
- He has a large circle of acquaintances. 他有很多相识的熟人。
- Some boys were engaged in a ding-dong battle on the playground surrounded by a circle of gaping class-mates. 一些男孩在操场上打斗得难解难分，围观的同学看得目瞪口呆，十分惊讶。
- I never use a single worm on the hook, preferring a cocktail of worm and maggot. 我从不单用一只虫作钓饵,而喜欢用虫和蛆的混合物。
