plastic bearing

• 塑料轴承

plastic bearing的用法和样例：

例句

1. It has been pointed out that the oilless plastic bearing is a product with a great developing prospect and applying value and ought to research and develop rapidly.
   表明了无油润滑塑料轴承是一种很有发展前途和应用价值的产品，应加快研究与开发。