crank handle

简明释义

曲柄插手

英英释义

例句

1.To start the old-fashioned car, you need to turn the crank handle 曲柄手柄 several times.

要启动这辆老式汽车，你需要将crank handle 曲柄手柄 转动几次。

2.He turned the crank handle 曲柄手柄 to adjust the height of the desk.

他转动crank handle 曲柄手柄 来调整桌子的高度。

3.The fisherman used a crank handle 曲柄手柄 to reel in his catch.

渔夫用crank handle 曲柄手柄 收回他的渔获。

4.When the power went out, we had to manually operate the generator with a crank handle 曲柄手柄.

当停电时，我们不得不使用crank handle 曲柄手柄 手动操作发电机。

5.The old projector required a crank handle 曲柄手柄 to advance the film.

这台老投影仪需要用crank handle 曲柄手柄 来推进胶卷。

作文

The concept of a crank handle is often associated with mechanical devices that require manual operation. A crank handle is essentially a lever that is attached to a rotating shaft, allowing users to convert linear motion into rotational motion. This simple yet effective mechanism has been utilized in various applications throughout history, from early machines to modern equipment. Understanding the functionality and importance of a crank handle can provide insights into how mechanical systems operate. In everyday life, we encounter numerous examples of crank handles. One of the most common instances is in hand-cranked coffee grinders. The crank handle allows users to grind coffee beans manually, providing a tactile experience that many enthusiasts appreciate. This not only gives them control over the coarseness of the grind but also connects them more intimately with the coffee-making process. The act of turning the crank handle becomes a ritual, enhancing the overall enjoyment of brewing coffee. Another example can be found in older vehicles, particularly those that require manual cranking to start the engine. The crank handle was an essential tool for early car owners, who had to physically turn the handle to get their engines running. This method required a certain level of skill and strength, making it a memorable aspect of automotive history. Although modern cars no longer use this method, the crank handle remains a symbol of ingenuity and the evolution of technology. In addition to these practical uses, crank handles also appear in various recreational activities. For instance, fishing reels often have a crank handle that anglers use to reel in their catch. The design allows for smooth retrieval of line and fish, showcasing how a simple mechanism can significantly enhance the user experience. The action of turning the crank handle while waiting for a bite adds an element of excitement and anticipation to the fishing process. Moreover, crank handles have made their way into the realm of fitness equipment. Many exercise machines utilize a crank handle to engage users in a full-body workout. For example, rowing machines often feature a crank handle that mimics the motion of rowing on water. This design not only provides a realistic experience but also allows users to adjust resistance levels by altering the speed and force applied to the crank handle. Despite the rise of digital technology and automation, the crank handle continues to hold relevance in today’s world. It serves as a reminder of the importance of hands-on interaction with tools and machines. The physical engagement required to operate a crank handle fosters a deeper understanding of mechanics and promotes a sense of accomplishment when tasks are completed manually. In conclusion, the crank handle is more than just a simple mechanical component; it represents a bridge between human effort and machine functionality. Its presence in various aspects of daily life—from coffee grinding to fishing and fitness—highlights its versatility and enduring significance. Embracing the use of a crank handle encourages us to appreciate the craftsmanship behind mechanical devices and the satisfaction derived from manual operation. As we move further into an automated future, the crank handle will always remind us of the value of hands-on experiences and the joy they bring in our lives.

“曲柄手柄”的概念通常与需要手动操作的机械设备相关。“曲柄手柄”本质上是一个连接到旋转轴的杠杆，允许用户将线性运动转换为旋转运动。这种简单而有效的机制在历史上被广泛应用于各种场合，从早期机械到现代设备。理解“曲柄手柄”的功能和重要性可以让我们深入了解机械系统的运作。在日常生活中，我们会遇到许多“曲柄手柄”的例子。其中最常见的实例之一是手动咖啡磨。曲柄手柄使用户能够手动研磨咖啡豆，为许多爱好者提供了他们所珍视的触觉体验。这不仅让他们掌握了研磨的粗细，还使他们与咖啡制作过程更加紧密地联系在一起。转动“曲柄手柄”的动作成为一种仪式，增强了冲泡咖啡的整体乐趣。另一个例子可以在较旧的车辆中找到，特别是那些需要手动曲柄启动发动机的车辆。“曲柄手柄”是早期汽车车主必不可少的工具，他们必须亲自转动手柄才能启动发动机。这种方法需要一定的技巧和力量，使其成为汽车历史上令人难忘的一部分。尽管现代汽车不再使用这种方法，但“曲柄手柄”仍然是创造力和技术演变的象征。除了这些实用用途，“曲柄手柄”还出现在各种休闲活动中。例如，钓鱼卷轴通常有一个“曲柄手柄”，钓鱼者用它来收回鱼线。这个设计使得平滑地收回鱼线和鱼成为可能，展示了简单机制如何显著提升用户体验。在等待上钩的过程中，转动“曲柄手柄”的动作增添了兴奋和期待的元素。此外，“曲柄手柄”也进入了健身器材的领域。许多健身机器利用“曲柄手柄”让用户参与全身锻炼。例如，划船机通常配有“曲柄手柄”，模拟在水上划船的动作。这种设计不仅提供了真实的体验，还允许用户通过改变施加在“曲柄手柄”上的速度和力量来调整阻力水平。尽管数字技术和自动化的兴起，“曲柄手柄”在当今世界仍然具有相关性。它提醒我们与工具和机器进行动手互动的重要性。操作“曲柄手柄”所需的身体参与促进了对机械原理的更深入理解，并在手动完成任务时带来了成就感。总之，“曲柄手柄”不仅仅是一个简单的机械组件；它代表了人类努力与机器功能之间的桥梁。它在日常生活中的各种方面——从咖啡研磨到钓鱼和健身——突显了它的多功能性和持久的重要性。拥抱使用“曲柄手柄”鼓励我们欣赏机械设备背后的工艺，以及手动操作带来的满足感。随着我们进一步迈向自动化的未来，“曲柄手柄”将始终提醒我们动手体验的价值以及它们在我们生活中带来的快乐。