self-aligning造句

1、Self-aligning roller bearing is a bearing.
调心滚子轴承是轴承的一种。

2、Self-aligning ball bearing is a species of crane accessories equipment.
调心球轴承是种起重机配件设备。

3、Barrel roller bearings belong to the group of self-aligning bearings.
滚子轴承属于自我调心轴承。