The roller is tapered, has a somewhat spherical shape and when assembled fits against the large rib of the cone.
圆锥滚子在和内圈大挡边接触的地方有一个稍带球面的形状。
Each of these parts is distinct in its own right, and when assembled together in a certain well-defined manner they become a new entity, the car.
其中的每个部件都具有明确的差别，按照定义良好的方式组装到一起后，就形成了一个新的实体，即汽车。
But other features might be specific to different sections — for example, these sections were created on different dates, and they might replace different component articles when assembled.
但是其他特性可能是针对不同章节的，比方说各个章节撰写的日期不同，在编篡时可以替换了不同的成分。
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