以下为句子列表：
英文: In order to avoid eutectic carbide, improve nodularity, increase nodule count and increase mechanical properties, three times of inoculations were adopted in the centrifugally cast nodular iron pipes production: a) inoculation in ladle; 2) pouring stream
中文: 摘要在离心铸造球墨铸铁管生产中，为防止共晶渗碳体析出，改善球化，增加石墨球数，提高力学性能，采用了三次孕育：(1)包内孕育；(2)浇注时随流孕育；(3)型内孕育。
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英文: In some makes of engine the helically splined coupling is not used and the angular displacement of the shafts is effected by centrifugally actuated devices of the swinging link or inclined plane type.
中文: 在一些发动机的制造中，并不使用螺旋式花键套管，通过摇杆或斜面型的偏心操纵装置，曲轴相位角起到同样作用.
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