例句與造句

1. It seals the carbon fibers in high-friction polymer.
2. For example, polyethylene ( PE ) is a cheap, low friction polymer commonly used to make disposable bags for shopping and trash, and is considered a commodity plastic, whereas medium-density polyethylene ( MDPE ) is used for underground gas and water pipes, and another variety called ultra-high-molecular-weight polyethylene ( UHMWPE ) is an engineering plastic which is used extensively as the glide rails for industrial equipment and the low-friction socket in implanted hip joints.
3. It's difficult to find friction polymers in a sentence. 用friction polymers造句挺難的