manual cranking

简明释义

手动曲柄

英英释义

例句

1.He demonstrated the manual cranking technique for starting the antique engine.

他演示了如何使用手动摇把技术来启动这台古董发动机。

2.In case of emergency, the lifeboat had a manual cranking system for launching.

在紧急情况下，救生艇配备了手动摇把系统以便发射。

3.During the power outage, we had to rely on manual cranking to operate the generator.

在停电期间，我们不得不依靠手动摇把来操作发电机。

4.The film projector used manual cranking to move the film through the machine.

这台电影放映机使用手动摇把将胶卷移动通过机器。

5.The old car required manual cranking to start the engine every morning.

这辆老车每天早上都需要手动摇把才能启动发动机。

作文

In the age of advanced technology, where automation and electric systems dominate our daily lives, it is easy to overlook the significance of simpler mechanical processes. One such process is manual cranking, which refers to the act of turning a crank by hand to generate motion or power. This method was once a common practice in various machinery, from early automobiles to manual coffee grinders, before the advent of electric motors became widespread.The concept of manual cranking can be traced back to the Industrial Revolution when machines were powered by human effort. For instance, many early engines required a person to turn a crank to start the engine. This not only demonstrated the ingenuity of the time but also highlighted the importance of human labor in the development of technology. The physical engagement involved in manual cranking allowed individuals to connect with the machine on a personal level, fostering a sense of accomplishment when the machine operated successfully.Despite its decline in modern applications, manual cranking still holds value in certain contexts. For example, in remote areas where electricity is scarce, manual cranks are used in devices such as hand-powered generators and water pumps. These devices are crucial for providing basic needs in communities that lack access to reliable power sources. Moreover, manual cranking serves as a reminder of the resilience and resourcefulness of people who can adapt to their environments using simple mechanical solutions.Additionally, manual cranking has found its place in recreational activities. Vintage cars, for instance, often require a hand crank to start the engine, allowing enthusiasts to experience the nostalgia of early automotive history. This hands-on interaction not only enhances the enjoyment of the activity but also educates individuals about the mechanics of older machines. It underscores the idea that understanding how things work can deepen our appreciation for technological advancements.Furthermore, learning about manual cranking can also be beneficial in educational settings. By introducing students to the principles of mechanics through hands-on activities involving cranks, educators can spark interest in engineering and physics. Such practical experiences allow students to grasp fundamental concepts like torque, energy transfer, and mechanical advantage in a tangible way.In conclusion, while we may live in a world dominated by automation, the practice of manual cranking remains relevant and valuable. It connects us to our past, provides essential services in underserved areas, and offers educational opportunities that can inspire future generations. As we continue to innovate and develop new technologies, it is essential to remember the simple yet effective methods that paved the way for modern advancements. Embracing the art of manual cranking not only honors our history but also enriches our understanding of the machines that shape our world today.

在当今技术先进的时代，自动化和电力系统主导着我们的日常生活，我们很容易忽视一些更简单的机械过程的重要性。其中一个过程就是手动摇柄，它指的是通过手动转动摇柄来产生运动或动力的行为。在电动机广泛应用之前，这种方法曾经在各种机械中普遍使用，从早期的汽车到手动咖啡研磨机。手动摇柄的概念可以追溯到工业革命时期，当时机器是由人力驱动的。例如，许多早期发动机需要一个人转动摇柄来启动发动机。这不仅展示了那个时代的聪明才智，还突显了人类劳动在技术发展中的重要性。参与手动摇柄的身体活动使个人能够与机器建立个人联系，当机器成功运转时，带来了成就感。尽管在现代应用中逐渐减少，手动摇柄在某些情况下仍然具有价值。例如，在电力稀缺的偏远地区，手动摇柄被用于发电机和水泵等设备。这些设备对于在缺乏可靠电源的社区提供基本需求至关重要。此外，手动摇柄也提醒我们那些能够利用简单机械解决方案适应环境的人们的韧性和足智多谋。此外，手动摇柄在娱乐活动中也找到了自己的位置。例如，复古汽车通常需要手动摇柄来启动发动机，让爱好者体验早期汽车历史的怀旧感。这种动手互动不仅增强了活动的乐趣，还教育人们了解老式机器的机械原理。它强调了理解事物如何运作可以加深我们对技术进步的欣赏。此外，了解手动摇柄在教育环境中也可能是有益的。通过引导学生参与涉及摇柄的实践活动，教育工作者可以激发他们对工程和物理的兴趣。这种实践经验使学生能够以切实的方式掌握扭矩、能量传递和机械优势等基本概念。总之，尽管我们生活在一个自动化主导的世界中，手动摇柄的实践仍然相关且有价值。它将我们与过去连接，为服务不足的地区提供必要的服务，并提供能够激励未来几代人的教育机会。当我们继续创新和开发新技术时，牢记那些为现代进步铺平道路的简单而有效的方法至关重要。拥抱手动摇柄的艺术不仅尊重我们的历史，也丰富了我们对塑造当今世界的机器的理解。