spherical plain bearing

例句：

1. 1.The planet Venus is known for its spherical shape.
   金星以其球形而闻名。
2. 2.The ball was a spherical object that could be thrown with force.
   这个球是一个可以用力投掷的球形物体。
3. 3.The sphere of influence is spherical and can expand or contract depending on the situation.
   影响范围是球形的，可以根据情况扩大或缩小。