您要查找的是不是：
- universal pulley machines 通用拉力器
- Our flag is raised to the top of a pole by a rope and two pulley. 我们的旗帜被用一根绳子和两个滑轮升到了竿顶。
- Washing machines take the drudgery out of laundry. 洗衣机把洗衣工作带出了洗衣房。
- The pulley is considered one of the five simple machines. 滑轮被认为是五种简单机械之一。
- Overpopulation is a universal problem. 人口过多是全球性的问题。
- Music has been called the universal language. 人们称音乐为世界的语言。
- His courage compels universal admiration. 他的勇气不禁令人肃然起敬。
- The machines are driven by electric motors. 这些机器都是由电动机驱动的。
- Work done by machines has replaced manual labour. 机器生产已经代替了手工劳作。
- Television provides universal entertainment. 电视提供大众化的娱乐。
- Men and machines poured along the main highways. 人和机动车顺着公路如潮涌而去。
- The lifting device is a system of rope and pulley. 这种起重装置是由缆索和滑轮组成的。
- The machines here are all homemade. 这里的机器都是国产的。
- The rags are pulled apart by machines. 机器将破布撕成碎片。
- This machine has a universal use in the home. 这种机器在家庭中有广泛的用途。
- Such a universal genius is hard to come by. 这样的全才是很难得的。
- English is referred to as a universal language. 英文被称为世界语言。
- They reeved the rope through the pulley. 他们把绳索穿过滑轮。
- Pelting is done automatically by machines. 剥皮是机器自动完成的。
- I can vouch for the reliability of the machines. 我可以保证这些机器的可靠性。
