crank arm

简明释义

曲柄臂

英英释义

例句

1.I need to replace the left crank arm on my mountain bike.

我需要更换我的山地自行车上的左侧曲柄臂。

2.The mechanic adjusted the crank arm to improve pedaling efficiency.

机械师调整了曲柄臂以提高踏板效率。

3.Make sure the crank arm is securely attached before riding your bike.

确保在骑自行车之前，曲柄臂牢固地固定好。

4.After the crash, the crank arm was bent and needed to be straightened.

事故后，曲柄臂弯曲了，需要矫正。

5.You can find various sizes of crank arms for different cycling styles.

你可以找到适合不同骑行风格的各种尺寸的曲柄臂。

作文

The bicycle is a remarkable invention that has transformed the way we travel and exercise. One of the key components of a bicycle is the drivetrain, which is responsible for converting the rider's pedaling motion into forward movement. A crucial part of this system is the crank arm, or in Chinese, 曲柄臂. The crank arm connects the pedals to the bottom bracket of the bike, allowing the rider to apply force while pedaling. This simple yet effective mechanism enables the transmission of energy from the rider's legs to the wheels, making it possible for bicycles to move efficiently.When discussing the functionality of the crank arm, it is essential to understand its role in the overall mechanics of cycling. The crank arm comes in various lengths, typically ranging from 165mm to 175mm, depending on the rider's height and leg length. Choosing the right length is important as it can significantly affect the rider's comfort and efficiency. A longer crank arm can provide more leverage, which may be beneficial for climbing steep hills, while a shorter crank arm can allow for quicker pedaling cadence on flat surfaces.The materials used in manufacturing crank arms also play a vital role in their performance. Traditionally made from aluminum or steel, modern advancements have introduced carbon fiber options that are lighter and stiffer. This reduction in weight can enhance the overall performance of the bicycle, especially during competitive racing. However, durability must also be considered, as lightweight materials can sometimes compromise strength.Maintenance of the crank arm is crucial for ensuring the longevity of the bicycle. Regular checks for wear and tear, as well as proper lubrication of the pedal threads and bottom bracket, can prevent issues such as squeaking or loosening of the crank arm. If any damage is detected, it is advisable to replace the crank arm promptly to avoid further complications.In addition to its mechanical function, the crank arm also has an aesthetic aspect. Many cyclists take pride in customizing their bikes, and the crank arm can be an area for personalization. From colorful anodized finishes to unique designs, the visual appeal of the crank arm can enhance the overall look of the bicycle.In conclusion, the crank arm is a fundamental component of a bicycle that plays a significant role in the efficiency and performance of cycling. Understanding its importance, choosing the right size, maintaining it properly, and appreciating its aesthetic value can greatly enhance the cycling experience. Whether for commuting, leisure, or competitive racing, the crank arm remains an essential element that connects the rider to the joy of cycling.

自行车是一项了不起的发明，它改变了我们的出行和锻炼方式。自行车的一个关键组成部分是传动系统，负责将骑行者的踩踏动作转化为向前移动的动力。这个系统中一个至关重要的部分是crank arm，在中文中称为曲柄臂。crank arm将踏板与自行车的底部支架连接起来，使骑行者在踩踏时能够施加力量。这个简单而有效的机制使骑行者的腿部能量得以传递到车轮上，从而实现自行车的高效移动。在讨论crank arm的功能时，理解其在骑行整体机械结构中的作用至关重要。crank arm有多种长度，通常在165mm到175mm之间，具体取决于骑行者的身高和腿长。选择合适的长度非常重要，因为这会显著影响骑行者的舒适度和效率。较长的crank arm可以提供更多的杠杆，这在爬陡坡时可能会有优势，而较短的crank arm则可以让骑行者在平坦路面上更快地踏踩。制造crank arm所用的材料也对其性能起着重要作用。传统上由铝或钢制成，现代技术的进步使碳纤维选项成为可能，这些材料更轻且更硬。这种重量的减少可以提升自行车的整体性能，尤其是在竞争性赛车中。然而，耐用性也必须考虑，因为轻质材料有时可能会妨碍强度。对crank arm的维护对于确保自行车的耐用性至关重要。定期检查磨损情况，以及适当润滑踏板螺纹和底部支架，可以防止出现吱吱作响或crank arm松动等问题。如果发现任何损坏，建议及时更换crank arm以避免进一步的复杂问题。除了机械功能，crank arm还有美学方面的价值。许多骑行者为定制他们的自行车而感到自豪，crank arm可以成为个性化的一个领域。从多彩的阳极氧化涂层到独特的设计，crank arm的视觉吸引力可以增强自行车的整体外观。总之，crank arm是自行车的基本组成部分，对骑行的效率和性能起着重要作用。了解它的重要性，选择合适的尺寸，妥善维护，并欣赏其美学价值，可以极大地提升骑行体验。无论是通勤、休闲还是竞争性赛车，crank arm始终是连接骑行者与骑行乐趣的一个重要元素。