Murray friction draft gear

例句：

1. 1.The Murray friction draft gear is an essential component of the air conditioning system.
   默里摩擦式风扇齿轮是空调系统的一个必不可少的组成部分。
2. 2. The Murray friction draft gear was designed to improve the efficiency of the cooling system.
   默里摩擦式风扇齿轮被设计来提高冷却系统的效率。
3. 3. The Murray friction draft gear has been tested and proven to be reliable and durable.
   默里摩擦式风扇齿轮已经被测试并证明是可靠和耐用的。