fast and loose pulley

简明释义

固定轮和游滑轮装置

英英释义

例句

1.During the demonstration, the technician showcased the efficiency of the fast and loose pulley setup.

在演示中，技术员展示了快慢轮装置的高效性。

2.Using a fast and loose pulley can help you lift heavier loads with less effort.

使用快慢轮可以帮助你以更少的力气提升更重的负载。

3.In our workshop, we installed a fast and loose pulley system for easier material handling.

在我们的车间，我们安装了一个快慢轮系统，以便更轻松地处理材料。

4.The fast and loose pulley allows for quick adjustments in the tension of the cable.

这个快慢轮允许快速调整电缆的张力。

5.The engineer explained how the fast and loose pulley works in the new machine design.

工程师解释了新机器设计中如何使用快慢轮。

作文

In the realm of mechanics, the concept of a fast and loose pulley plays a crucial role in understanding how we can efficiently lift heavy objects. A fast and loose pulley system consists of two pulleys: one that is fixed in place (the fast pulley) and another that can move freely (the loose pulley). This design allows for a mechanical advantage when lifting weights, making it easier to perform tasks that would otherwise require significant physical effort.The principle behind a fast and loose pulley is simple yet effective. When a rope is passed over the fast pulley and then over the loose pulley, pulling down on the rope connected to the loose pulley will lift the load attached to it. The fixed pulley does not move, which helps to redirect the force applied, while the loose pulley moves with the load, effectively doubling the lifting power of the system. This arrangement is particularly useful in construction sites, where heavy materials need to be lifted to great heights with minimal strain on workers.Historically, the use of pulleys dates back to ancient civilizations, but the fast and loose pulley system has evolved significantly over time. Ancient Egyptians used simple pulley systems to construct the pyramids, while modern engineering has refined these concepts to create more complex and efficient lifting devices. Today, cranes and hoists often incorporate variations of the fast and loose pulley design, showcasing its enduring relevance in the field of mechanics.Beyond its practical applications, the fast and loose pulley serves as a metaphor in various contexts. In literature and everyday conversations, the phrase "playing fast and loose" implies a lack of caution or a disregard for rules. This idiom can describe people who take risks without considering the consequences, much like how a loose pulley might lead to unpredictable outcomes if not properly managed. Thus, understanding the mechanics of a fast and loose pulley not only informs us about physical systems but also invites reflection on our own decision-making processes.In conclusion, the fast and loose pulley is more than just a mechanical device; it symbolizes a balance between risk and reward. As we navigate through life, much like lifting heavy loads with a pulley system, we must weigh our choices carefully. Whether in engineering or personal endeavors, the principles of the fast and loose pulley remind us that efficiency and caution can go hand in hand, leading to successful outcomes in both our physical and metaphorical pursuits.

在机械领域，“fast and loose pulley”的概念在理解如何有效地提升重物方面起着至关重要的作用。“fast and loose pulley”系统由两个滑轮组成：一个固定在原位（快滑轮），另一个可以自由移动（松滑轮）。这种设计在提升重量时允许机械优势，使得执行那些否则需要大量体力的任务变得更加容易。“fast and loose pulley”背后的原理简单而有效。当一根绳索穿过快滑轮，然后穿过松滑轮时，拉下连接到松滑轮的绳索将提升附加在其上的负载。固定滑轮不动，有助于重定向施加的力量，而松滑轮随负载移动，从而有效地加倍了系统的提升能力。这种安排在建筑工地上尤其有用，因为在这些地方，重物需要在尽量减少工人压力的情况下被提升到很高的高度。历史上，滑轮的使用可以追溯到古代文明，但“fast and loose pulley”系统随着时间的推移发生了显著的演变。古埃及人使用简单的滑轮系统来建造金字塔，而现代工程则对这些概念进行了改进，以创建更复杂和更高效的提升装置。如今，起重机和升降机通常结合了“fast and loose pulley”设计的变体，展示了其在机械领域的持久相关性。除了它的实际应用外，“fast and loose pulley”在各种语境中也作为隐喻。在文学和日常对话中，“玩弄规则”的短语暗示缺乏谨慎或对规则的漠视。这个习语可以描述那些在不考虑后果的情况下冒险的人，就像如果没有妥善管理，松滑轮可能导致不可预测的结果。因此，理解“fast and loose pulley”的机械原理不仅让我们了解物理系统，还邀请我们反思自己的决策过程。总之，“fast and loose pulley”不仅仅是一个机械装置；它象征着风险与回报之间的平衡。当我们在人生中航行时，就像用滑轮系统提升重物一样，我们必须仔细权衡我们的选择。无论是在工程还是个人努力中，“fast and loose pulley”的原则提醒我们，效率和谨慎可以并存，从而在我们的物理和隐喻追求中取得成功的结果。