A、 反推可以提供刹车力使尾喷气流偏转至相反方向。
B、 反推通过使排气气流转向相反的方向来产生制动力。
C、 尾气气流偏离至反方向从而使反推提供刹车。
答案：B
A、 反推可以提供刹车力使尾喷气流偏转至相反方向。
B、 反推通过使排气气流转向相反的方向来产生制动力。
C、 尾气气流偏离至反方向从而使反推提供刹车。
答案：B
A. 与飞机相应的重量,包括类型的座椅和内部、航空电子设备、附件、标准设备和固定装置,以及基于该重量的典型空重和最大有效载荷。
B. 与飞机相应的重量,包括典型座椅和内部、航空电子设备、附件、标准设备和固定压舱物,以及基于该重量的典型空重和最大有效载荷。
C. 与飞机附加的重量,包括典型座椅和内部、航空电子设备、附件、标准设备和固定装置,以及基于该重量的典型空重和最大有效载荷。
D. C.与飞机附加的重量,包括典型座椅和内部、航空电子设备、附件、标准设备和固定装置,以及基于该重量的典型空重和最大有效载荷。
A. 拧紧螺栓时使用不同的措辞。
B. 使用不同的扳手拧紧螺栓。
C. 拧螺栓时使用不同的扭矩。
A. 风扇为带有整体式感应电动机的单级风扇,每个风扇各有一个单向活门并作为一个组件安装。
B. 风扇作为单级风扇和整体电动机各有一个单向活门并作为一个组件安装。
C. 风扇是单级风扇,整体传动电动机,电机各自有一个单向活门并作为一个组件安装。
A. Illustrations should be used when they will simplify,shorten or make the text easier to understand.
B. When illustrations can simple,shorten or make the text easy for understanding,they may be used.
C. Whenever diagrams can simple,shorten or make the content easy to understand,they could be used.
A. Because the inflation tests and material inspections can identify and condemn rafts which have more than minor installation defects,rafts which pass the tests and inspections may be in servicefor a period time with no fixed limit.
B. As the inflation tests and material inspections can affirm and declare the minor installation defects of the rafts,rafts checked by tests and inspections may come into service with no definition.
C. Rafts succeed in tests and inspections may keep the service indefinitely from a time that the inflation tests and material inspections identified and announced the rafts with many minor installation defects.
D. C.Rafts succeed in tests and inspections may keep the service indefinitely from a time that the inflation tests and material inspections identified and announced the rafts with many minor installation defects.
A. If the error is more than 3 degrees,calibrate the glide slope.
B. If the error is more than 3 degrees,calibrate the compass.
C. If the error is more than 3 degrees,calibrate the gyroscope.
A. 现代飞机都安装单元体结构的发动机。
B. 一个铸造结构的发动机安装在现代飞机上。
C. 一个整体发动机安装在所有现代飞机上。
A. English is not often the mother language of the readers of technical files.
B. English is not often the private language of the readers of technical books.
C. English is not often the required language of the readers of technical pamphlet.
A. When describing the airplane's Engine,spark plug system shall be described.
B. When describing the airplane's Engine,starter system shall be described.
C. In the description of the airplane's Engine,ignition system shall be described.
A. 告诉一个人撤除轮挡。
B. 告诉 A 撤除轮挡。
C. 告诉一个人去拆卸机轮。
