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- Lever:Simple machine used to amplify physical force. 杠杆:用来增大力量的简单机械。
- Lever：Simple machine used to amplify physical force. 杠杆:用来增大力量的简单机械。
- The most simple machine that is not just a finite list of words. 最简:有限个词的集合。
- Lever: Simple machine used to amplify physical force. 杠杆:用来增大力量的简单机械。
- A simple device, such as a lever, a pulley, or an inclined plane, that alters the magnitude or direction, or both, of an applied force; a simple machine. 机械装置一个简单装置，如杠杆、滑轮或斜面刨，可以改变作用力的大小或方向或同时改变; 简单机械装置
- The simplest machine is the pulley. 最简单的机械就是滑轮了。
- Levers and pulleys are simple machines. 杠杆和滑轮是简单机械。
- From your daily experience and from your study of simple machines, you probably know a bit about friction. 从你的日常经验和对简单机器的研究中，你就会了解一点儿有关摩擦的知识。
- The pulley is considered one of the five simple machines. 滑轮被认为是五种简单机械之一。
- We used the digital camera to take a short movie clip of our simple machine in action. 我们使用数码相机拍摄了运转中的简单机械的简短电影剪辑。
- A simple device,such as a lever,a pulley,or an inclined plane,that alters the magnitude or direction,or both,of an applied force; a simple machine. 机械装置，一个简单装置，如杠杆、滑轮或斜面刨，可以改变作用力的大小或方向或同时改变；简单机械装置。
- A simple machine consisting essentially of a wheel with a grooved rim in which a pulled rope or chain can run to change the direction of the pull and thereby lift a load. 滑轮装置一种有一个拉绳或链子穿过的有槽的轮子且通过改变拉力的方向而拉起重物的简单机械
- A simple machine consisting of a rigid bar pivoted on a fixed point and used to transmit force, as in raising or moving a weight at one end by pushing down on the other. 杠杆固定于某一枢轴，用来传递力的一种简单的装置，带有一个金属杆，如通过压低一端而举起或移动另一端的重物
- The agriculturist, Wang Chen-ho creations of wood for insertion of success, he also invented the punner racks, with a simple machine, increasing the efficiency of the typesetting. 到了元代，农学家王祯创制木活字成功，他还发明了转轮排字架，用简单的机械，增加排字的效率。
- But he liked to make things, such as kites and clocks and simple machines. 但他喜欢动手制作一些东西，比如风筝、钟表和简单的机器。
- A simple test will show if this is real gold. 简单的试验就能证明这是否是真金。
- Complicated as a modern machine is ,it is essentially a combination of simple machines . 现代机器虽复杂，但实质上不过是简单机械的组合。
- Such a complex machine as the diesel engine is simply a combination of simple machines. 象柴油机那样复杂的机器只不过是简单机械的组合。
- Complicated as modern machine is, it is essentially a combination of simple machines. 现代化机器虽复杂，但实质上不过是许多简单机械的组合。
- Complicated as a modern machine is , it is essentially a combination of simple machines . 现代机器虽复杂，但实质上不过是简单机械的组合。
