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发表时间 : 2018-6-19 15:31:04 | 浏览 : 10927    评论 : 2

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云友让翻译,帮翻译下:

The airplane is powered bytwo CFM56–3 engines. The engine is a dual rotor axial flow turbofan. The N1 rotor consists of a fan, a three stage booster section connected by a shaft to a four stage low pressure turbine.

The N2 rotor consists of a high pressure compressor and a high pressure turbine. The N1 and N2 rotors are mechanically independent. The N2 rotor drives the engine gear boxes. A bleed air powered starter motor is connected to the N2 rotor.
波音737飞机由两台CFM56-3发动机提供动力,这两台发动机是双转子轴流式涡扇发动机。其中,低压转子包含一个风扇以及一个由轴连接至四级低压涡轮的三级增压器,高压转子包含一个高压压气机和一个高压涡轮。高压转子和低压转子在机械上是相互独立的。低压转子用来驱动发动机变速箱,一个引气动力启动电动机与之相连。

The main engine control(MEC) schedules fuel to provide the thrust called for by the forward thrust lever setting. The fuel flow is further refined electronically by the power management control (PMC) without moving the thrust levers. Each engine has individual flight deck controls.

Thrust is set by positioning the thrust levers. The thrust levers are positioned automatically by the auto-throttle system or manually by the flight crew. The forward thrust levers control forward thrust from idle to maximum. With the PMCs ON or OFF, advancing the thrust levers full forward provides some over-boost and should be considered only during emergency situations when all other available actions have been taken and terrain contact is imminent. The reverse thrust levers control thrust from reverse idle to maximum reverse.
主发动机控制系统通过前置推力杆输送燃油提供推力。动力管理系统通过电子控制进一步提炼燃油,而不用再移动油门杆。每个发动机都有独立的驾驶舱控制系统。推力可以通过改变油门杆的位置来设置,而油门杆的控制可以通过自动油门系统或是机组成员手动调整。

前推油门杆使前推力从慢车位变为最大位。无论动力管理控制系统是否接通,将油门杆推到满油门位都可能提供过度增压,该措施一般只在紧急情况下使用,此时机组已采取了其他可采用的方式或是飞机已经接近撞地。反推手柄控制从反推慢车位至最大反推的反推力。

Certain engine malfunctions can result in airframe vibrations from the windmilling engine. As the airplane transitions from cruise to landing, there can be multiple, narrow regions of altitudes and airspeeds where the vibration level can become severe. In general, airframe vibrations can best be reduced by descending and reducing airspeed.

However, if after descending and reducing airspeed, the existing vibration level is unacceptable, and if it is impractical to further reduce airspeed, the vibration level may be reduced to a previous, lower level by a slight increase in airspeed.
某些发动机失效会导致来自风转发动机的机体震动。在飞机从巡航至着陆的过程中,会产生多个狭窄的高度和空速范围,在这些范围中震动会变得非常严重。

一般来讲,降低高度和减小空速都可以有效地缓解机体震动。然而,如果在降低了高度和减小空速之后,现有的震动依然不可接受,而此时已经不能在进一步减小速度,那么或许可以通过轻微的加速使震动减小到先前稍轻一点的水平。

Engine indications are displayed on the center instrument panel by the Engine Instrument System (EIS).N1, EGT, N2, and FF/FU are the primary indications and are displayed as both digital readouts and round dial/moving pointer indications. N1, EGT, and N2 have operating and caution ranges and limits indicated by green and yellow bands and red radials.

When the round red warning light above the indicator is illuminated, it indicates the limit for the engine parameter displayed below it has been reached or exceeded. The red warning light remains illuminated until the engine parameter is reduced below the limit.
发动机指示通过发动机仪表系统显示在中央仪表板上。低压转子转速,排气温度,高压转子转速,燃油流量/已消耗燃油是主要指示并以数字读数和圆形刻度盘/移动指针的形式指示出来。绿色和黄色条带以及红色线分别表示低压转子转速、排气温度和高压转子转速的操作限制和警告范围。当指示器上的圆形红色警示灯闪烁时,表示在其下方显示的发动机参数限制已达到或超过限制。红色警示灯会保持闪烁直到发动机参数回到正常范围。
【飞行英语ICAO考试】答云友提问!Powerplant句型(一) - 临云行 - 153103cp9jgckkkgwnskcc.jpg
“让我们一起,飞遍全世界!” · 临云行
狼...之舞 评论于2018-6-19 15:32:31 |私信
希望对大家有帮助
“让我们一起,飞遍全世界!” · 临云行
ignoring 评论于2018-6-19 18:33:40 |私信
看到一篇文章,请问怎么翻译?
I am honored to have my four-year flight training in CAFUC. During the first two years, I learned many aviation courses or subjects which provided me some essential aeronautical knowledge and helped me pass the required tests. They include the Principles of Flight,Aircraft Systems, Aircraft Performance, Human Factors and CRM, Meteorology, Air Traffic Control, radiotelephony communication and so on. They are very important to the job as a pilot. I like all the subjects I learned in CAFUC.
“让我们一起,飞遍全世界!” · 临云行
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