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In this paper,using non-linear equation groups indicating the relations between liquid rocket engine performances and interference factors,the engine performances are simulated by MonteCarlo method' A empirical distribution curve and statistical average value and believalbe range are obtained.

利用液体火箭发动机性能参数和内外干扰因素之间的一组随机非线性方程组，采用Monte－Carlo方法对发动机性能参数进行了模拟。

Engine Room Hatch 机舱舱口 One (1) watertight hatch of 1,500 mm x 1,500 to be arranged on upper deck in front of deck house above engine room.

在甲板室前机舱上方的上甲板上应布置有1只尺寸为1500mm×1500mm的水密舱口，不锈钢螺栓固定的舱口与主甲板平齐。

The main engine remote control system is one of important part of the engine room automation.

船舶主机遥控系统是机舱自动化的一个重要组成部分。

In the early days of cars, you actually had to crank the engine with a little handle. Now the cranking motor or starter is just powerful enough to start the engine turning.

以前的汽车需使摇柄才能使发动机启动，现在启动机或点火机已足以使发动机启动了。

In the early days of cars, you actually had to crank the engine with a little handle. Now the crank ing motor or starter is just powerful enough to start the engine turning.

以前的汽车需使摇柄才能使发动机启动，现在启动机或点火机已足以使发动机启动了。

One day he was leaning on the railing of the engine-room, and was observing the engine, when a sudden pitch of the steamer threw the screw out of the water.

至于目前旅行中可能碰到的事，以及这些事对他可能产生的影响，他根本就没有放在心上。可是路路通却一直心神不定。

Shipping safety is the permanent topic of maritime industry, As engine-room is the center of ship, the studying on the ship engineer room is important to safer maritime, but engine room is a complex organization: there are many sources of trouble and abundant parameters of phenomenon, moreover trouble and phenomenon is not simple corresponding relation, but intricateness and mutual influence .

安全是船舶运输永恒的主题，船舶机舱是船舶的动力中枢——心脏，所以研究船舶机舱的安全性对提高船舶运输的整体安全性有着重要意义。

Fourthly, it takes man, machine, circumstance and management as assessment index, proposes a calculating method for index weight calculation, puts forward the linear-weight model to make the engine-room equipment assessment, at last be able to work out the safety grade on the basis of the model and direct the maintenance of the engine-room.

最后用Visual Basic语言研发了一套包括机舱设备状态监测与安全评估模块、船舶应急事件处理模块、船舶机舱设备维修管理模块及船舶设备备件管理清单模块的软件系统。

Since the 1960s,the leading shipbuilding countries begin to study on the ship condition monitoring and trouble analysis, Nobodys engine-room shipping on duty appeared .certainly the condition monitoring and trouble analysts system also meets some question ,such as: only give alarm or show the actual value of the parameter, does not possess the function of analyzing and giving operator the direct suggestion function about the complicated trouble reason , Only monitor the present running conditions, does not possess the function of predicting equipment future and run reliability though trouble analysis technology makes good progress in these yeas, onboard the ship is still rare .aiming to improve the shipping safety, this paper make some research work on the ship engine-room, the main innovation are as follows:Firstly, this paper introduces and analyzes the research work and current situation on the condition monitoring, trouble analysis and safety assessment .especially in the maritime fields .

船舶机舱系统结构复杂，故障源多，征兆参数丰富，故障与征兆之间常常不存在简单的对应关系，而是相互影响，关系错综复杂。60年代以来，世界上先进的造船国家都相继开展了船舶机械状态监控和故障诊断的研究，出现了无人值班机舱船舶，但仍存在不足之处，如：只给报警提示或显示参数的实际值，不具备对复杂故障的原因分析并给操作者以直接的提示或建议功能；只监测当前的运行状况，不具备预测设备未来运行可靠性的功能；尽管近年来设备故障诊断技术得到了很大的发展，但真正能成功应用于实船的尚不多见。本论文以船舶机舱为对象，以提高船舶营运安全性为目标，来研究船舶机舱的安全控制技术，主要内容如下：首先，介绍和分析了状态监测、故障诊断和安全评估的研究内容和现状，尤其是在船舶领域的研究近况。

In the hands of Watt, the instrument maker, who devoted almost a life to the subject, the condensing engine acquired gigantic strength; and George Stephenson, the colliery engineman, was certainly not the least of those who have assisted to bring the high- pressure engine to its present power.

煤矿机械师乔治·斯蒂芬森当然也只是那些曾经努力使高压力发动机获得目前的力量的人员之一。海纳百川，有容乃大；壁立千仞，无欲则刚！

Chimborazo and Cotopaxi, took me by the hand.

越过琴博腊索山和科托帕克西山。

This car is in a good condition.

这辆车的状况很好。