pantograph

简明释义

英[ˈpæntəɡrɑːf]美[ˈpæntəɡræf]

n. 放大尺；缩放仪；缩图仪；比例画图仪器

英英释义

单词用法

同义词

反义词

例句

1.The result is of practical significance in design of pantograph tilting mechanism.

为受电弓倾摆机构的设计开发提供了依据。

2.In this article reproduce by pantograph mainly includes the graph the enlargement, reduces with the fractionated gain and the entire screen demonstration.

本文中的缩放主要包括图形的放大、缩小和局部放大与全屏显示。

3.Three typical dynamic models for catenary system and a model for pantograph frame are established. A simulation software for the simulation is developed.

建立了各类接触网的欧拉梁-集中质量模型及受电弓的框架模型，开发了其数值模拟软件。

4.The catenary's shape influenced by gravity is curve, and the pantograph-catenary contact force changes regularly with pattern during one span.

在重力作用下的接触网是悬链形，弓网接触力在一个跨距内呈现规律的起伏变化。

5.A brief introduction to the pantograph and catenary structures of high speed railways in France, Germany and Japan is presented.

简要介绍了法国、德国及日本高速铁路受电弓和接触网结构。

6.Thereby we analyse the effect of the main pantograph structure parameters upon the contacting state and propose measures of improving current collection.

最后给出了受电弓主要结构参数对接触受流的影响情况，以及提高接触受流质量的建议。

7.From the viewpoint of electric contact, copper base alloys have been applied to contact wires and also to pantograph sliders.

从电接触的角度来看，铜基合金被用于接触导线和受电弓滑板的制造。

8.Firstly, by establishing the model of regular planar butterfly pantograph, features of these structures are analyzed and the specialty of them are synthesized.

首先，建立规则蝶形平面放缩机构的运动学模型，分析其结构特点并对其结构和运动进行综合。

9.When the pantograph is raised, it allows the train to draw electricity from the overhead line.

当弓形受电器抬起时，它允许火车从架空电缆中获取电力。

10.The train's power supply is maintained through a pantograph, which connects to the overhead wires.

火车的电源通过一个弓形受电器维持，该装置连接到架空电缆。

11.A malfunctioning pantograph can lead to power interruptions for electric trains.

故障的弓形受电器可能导致电动火车的供电中断。

12.In model railroading, a pantograph can be used to simulate the look of a real train's power system.

在模型铁路中，弓形受电器可以用来模拟真实火车电力系统的外观。

13.The engineer adjusted the pantograph to ensure it maintained contact with the wire at high speeds.

工程师调整了弓形受电器以确保在高速行驶时与电线保持接触。

作文

The term pantograph refers to a mechanical device that is used to copy a plan or drawing on a different scale. It consists of a system of linked rods that can be adjusted to either enlarge or reduce the size of the original figure. The history of the pantograph dates back to the 17th century, when it was first invented by the mathematician Christopher Scheiner. Over the years, it has evolved into various forms and has found applications in multiple fields including art, engineering, and even transportation.In art, artists often use a pantograph to create scaled reproductions of their work. For instance, if an artist wants to replicate a painting but at a larger size, they can use a pantograph to maintain the proportions accurately. This device allows them to trace the original image while simultaneously adjusting the scale. This method not only preserves the integrity of the artwork but also saves time, as it eliminates the need for freehand drawing, which can lead to inaccuracies.In engineering and design, the pantograph serves a similar purpose. Engineers may use it to create detailed models or drawings based on existing blueprints. By adjusting the arms of the pantograph, they can produce precise replicas that are essential for manufacturing processes. This is particularly important in fields such as architecture, where accurate representations of designs are crucial for construction.Moreover, the pantograph has a significant role in the world of transportation, especially in rail systems. In this context, it refers to a device mounted on the roofs of electric trains that collects power from overhead wires. This type of pantograph is designed to maintain contact with the wire as the train moves, ensuring a continuous supply of electricity. The efficiency and reliability of this system are vital for the operation of electric trains, making the pantograph an essential component of modern railway technology.The versatility of the pantograph is evident in its various applications across different domains. Its ability to accurately reproduce images and designs has made it an invaluable tool for artists and engineers alike. Additionally, its use in transportation highlights the importance of innovation in improving efficiency and sustainability in public transit systems.In conclusion, the pantograph is much more than just a simple copying tool. It embodies the intersection of art, science, and technology. Whether it is used to create a beautiful piece of art, draft a complex engineering design, or power a high-speed train, the pantograph demonstrates how a single invention can have far-reaching implications across different fields. Understanding its functionality and applications allows us to appreciate the ingenuity behind this remarkable device and its contributions to our daily lives.

“pantograph”一词指的是一种机械装置，用于按不同的比例复制平面图或绘图。它由一组可调节的连杆组成，可以放大或缩小原始图形。pantograph的历史可以追溯到17世纪，当时数学家克里斯托弗·谢纳首次发明了它。多年来，它演变成各种形式，并在艺术、工程甚至交通等多个领域找到了应用。在艺术方面，艺术家们经常使用pantograph来创建他们作品的比例复制品。例如，如果艺术家想要复制一幅画，但想要更大的尺寸，他们可以使用pantograph来准确地保持比例。这个装置允许他们在同时调整比例的情况下描绘原始图像。这种方法不仅保留了艺术作品的完整性，还节省了时间，因为它消除了自由手绘可能导致的不准确性。在工程和设计中，pantograph起着类似的作用。工程师可能会使用它根据现有蓝图制作详细模型或图纸。通过调整pantograph的臂，他们可以生成精确的复制品，这对制造过程至关重要。这在建筑等领域尤其重要，在这些领域中，设计的准确表示对施工至关重要。此外，pantograph在交通运输领域也发挥着重要作用，尤其是在铁路系统中。在这种情况下，它指的是安装在电动列车顶部的设备，从架空电线中收集电力。这种类型的pantograph旨在随着火车的移动保持与电线的接触，从而确保电力的持续供应。该系统的高效性和可靠性对电动列车的运行至关重要，使得pantograph成为现代铁路技术的重要组成部分。pantograph的多功能性在其在不同领域的各种应用中得以体现。它准确复制图像和设计的能力使其成为艺术家和工程师不可或缺的工具。此外，它在交通运输中的使用突显了创新在提高公共交通系统的效率和可持续性方面的重要性。总之，pantograph远不止是一个简单的复制工具。它体现了艺术、科学和技术的交汇点。无论是用于创作美丽的艺术作品、起草复杂的工程设计，还是为高速列车提供动力，pantograph都展示了一项发明如何在不同领域产生深远的影响。理解它的功能和应用使我们能够欣赏这一非凡装置背后的智慧及其对我们日常生活的贡献。