metal exchange

• 金属互换

metal exchange的用法和样例：

例句

1. You might want to join a link exchange, but trading links often proves fruitless.
   你可以加入互换链接，但通常商业链接都是没有效果的。
2. It can operate flexible to reach the exchange between the oxygenating and stirring.
   表曝机运行灵活，可以实现充氧和搅拌的互换。