系统外文文献翻译、中英文翻译

1、湖南工学院本科毕业设计（论文） 外文译文 院 （系）： 机械工程学院 专 业： 机械设计制造及其自动化 姓 名： 程艳波 学 号： 08201420736 指导教师评语： 签名： 年 月 日 译文： 液压系统 液压传动和气压传动称为流体传动，是根据 17 世纪帕斯卡提出的液体静压力传动原理而发展起来的一门新兴技术， 1795 年英国约瑟夫布拉曼 (749在伦敦用水作为工作介质，以水压机的形式将其应用于工业上，诞生了世界上第一台水压机。 1905 年将工作介质水改为油，又进一步得到改善。 第一次世界大战 (1914液压传动广泛应用，特别是 1920 年以后，发展。

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3、液压系统 一个完整的液压系统由五个部分组成，即动力元件、执行元件、控制元件、无件和液压油。动力元件的作用是将原动机的机械能转换成液体的压力能，指液压系统中的油泵，它向整个液压系统提供动力。液压泵的结构形式一般有齿轮泵、叶片泵和柱塞泵。执行元件(如液压缸和液压马达)的作用是将液体的压力能转换为机械能，驱动负载作直线往复运动或回转运动。 控制元件(即各种液压阀)在液压系统中控制和调节液体的压力、流量和。

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5、液压系统 液压传动和气压传动称为流体传动，是根据 17 世纪帕斯卡提出的液体静压力传动原理而发展起来的一门新兴技术， 1795 年英国约瑟夫布拉曼 (749在伦敦用水作为工作介质，以水压机的形式将其应用于工业上，诞生了世界上第一台水压机。 1905 年将工作介质水改为油，又进一步得到改善。 第一次世界大战 (1914液压传动广泛应用，特别是 1920 年以后，发展更为迅速。液压元件大约在 19 世纪末 20 世纪初的 20 年间，才开始进入正规的工业生产阶段。 1925 年 维克斯 (明了压力平衡式叶片泵 ,为近代液压元件工业或液压传动的逐步建立奠定了。

6、附录一 外文译文 视频监控系统是安全防范系统的重要组成部分，是一种防范能力较强的综合系统。视频监控以其直观、方便、信息内容丰富而广泛应用于许多场合。近年来，随着现代科学技术的不断发展特别是网络带宽、计算机处理能力和存储容量的迅速提高一级各种实用视频信息处理技术的出现，视频监控技术也有长足的发展，视频监控进入了全数字化的网络时代，日益受到人们的重视和关注。视频监控系统的发展基本上是从早期的模拟闭路电。

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8、一、 可编程控制器是 60年代末在美国首先出现的，当时叫可编程逻辑控制器 目的是用来取代继电器。以执行逻辑判断、计时、计数等顺序控制功能。提出 活、通用等优点和继电器控制系统的简单易懂、操作方便、价格便宜等优点结合起来，控制器的硬件是标准的、通用的。根据实际应用对象，将控制内容编成软件写入控制器的用户程序存储器内 ,使控制器和被控对象连接方便。 70年代中期以后， 入输出模块和外围电路也都采用了中、大规模甚至超大规模的集成电路，这时的 断功能，还同时具有数据处理、 际电工委员会 (布的可编程控制器标准草案中对可。

9、附录 1 英文参考资料 he is in be of on a as as in of of on of on to or by of is to it is is by a or is is of is is to s to at to in by to In is a is a in to a in s is is to or or or or or in or it of an a is to of or to is on is a of to of by or is in in is of to to to or If is to is to 附录 2 译文 汽车制动系统 制动系统是汽车中最重要的系统。 如果制动失灵，结果可能是损失惨重的。制动器实际就是能量转换装置，它将汽车的动能（动量）转化成热能（热量）。当驾驶员踩下制动踏板，所产生的制动力是汽车运动时动。

10、1液压制动系统当踩下制动踏板，您希望该车辆停下。液压制动踏板控制两个部分。首先，在液压作用下，由于采用细小的软管或金属线因此不必占用很大的空间。其次，液压机构提供了一个很大的优势，由一个很小的力踩在制动踏板上，会产生很大的力作用于车轮上。制动踏板连接在充满制动液的制动液压缸的活塞上，液压缸由活塞和油箱组成。现代主缸其实是两个独立的腔体。这种结构称之为双回路系统，因为前腔连接到前制动器与后腔连接到后制动器。（有些车辆是对角连接）。两个腔实际是分离的，允许紧急制动时一个系统失效另一个系统起作用。整个。

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14、1 附 录 1 什么是液压？ 一个完整的液压系统由五个部分组成，即动力元件、执行元件、控制元件、无件和液压油。动力元件的作用是将原动机的机械能转换成液压体的压力能，指液压系统中的油泵，它向整个液压系统提供动力。液压泵的结构形式一般有齿轮泵、叶片泵和柱塞泵。执行元件（如液压缸和液压马达）的作用是将液体的压力能转换为机械能，驱动负载作直线往复运动或回转运动。控制元件（即各种液压阀）在液压系统中控制和调节液体的压力、流量和方向。根据控制功能不同，液压阀可分为压力控制阀、流量控制阀和方向控制阀。压力控制阀又分。

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16、0 附件 1 热轧工艺 该轧机的主要功能是 将半成品钢重新加热到接近其熔点， 然后通过由共计 的大功率连续滚动驱动马力发动机带动的 12 道连续轧制使钢板变得更薄更长，最后卷曲被拉长的钢板以运输到下一道工序。 热轧板卷的重量高达 30 吨至 30” 和 74” 。 将 8 至 9 英寸厚 、 36 英尺长的钢板被卷成薄如 16 英寸和 1 / 2 英里长的带钢。 线圈 由两 个内径（ 眼睛 ） 为 30” 卷取机， 外径上限分别为 72”和 74” 分别与 850 和 1000 磅每英寸宽（ 相对应的两个卷曲机产生。该厂为每一个 供售后业务，以及负责运输成品 给 客。 大 部分。