您要查找的是不是：
- Pulley systems are commonly used in daily life. 滑轮系统被广泛应用在日常生活中。
- Although the mass being lifted by a pulley system is constant, the resistance a muscle sees changes with the lever arm and the speed of the movement. 尽管被提起的配重是个恒定值，由于杠杆作用和运动速度不一样，作用到肌肉的阻力还是一个变化值。
- Rescuers trying to help a moose that fell into icy water in Newman Lake, Washington had to get creative, they came up with a pulley system to help slide the animal off the lake. 在华盛顿的纽曼湖上，救援人员试图救助一只跌入冰冷河水的驼鹿。他们创造性的制造了一种滑轮系统来帮助小鹿从湖中滑出来。
- Crevasse rescue is one of the more complicated mountaineering techniques, sometimes requiring pulley systems and multiple haul lines. 裂缝救援是一项更副复杂一些的登山技术，有时候需要滑轮组和多组拖曳绳。
- 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。
- I suppose you also have a caste system in your society. 我想你们的社会里也有一种等级制度。
- The right to dissent is part of our political system. 有持异议的权利是我们政治体制的组成部分。
- 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。
- The Application of the Genetic Algorithms in the Optimization for the Compensating Pulley System of Luffing Mechanism 基于遗传算法的变幅机构导向滑轮补偿系统的优化
- Do you know how to log in to the system? 你知道怎么登录进入这个系统吗？
- Public opinion was against the old feudal system. 公众舆论反对旧的封建制度。
- The system works on the principle that heat rises. 该项装置是按照热力上升的原理运转的。
- The drainage system has been aged. 排水系统已经老化了。
- They called for a radical reform of our tax system. 他们要求对税收制度进行根本改革。
- This is a highly efficient new heating system. 这是个高效的新取暖系统。
- He's mute on the subject of social system. 他对社会制度的问题保持沉默。
- He said he used this system in the year dot. 他说他很久以前用过这个系统。
- Our manager is conversant with account system. 我们的经理精通会计制度。
- The system can translate English into Chinese. 这个系统能将英语译为汉语。
- The caste system is still strong in India. 种姓制度在印度仍然很牢固。
