A、 When hydraulic power is supplied,keep persons and equipment away from all control surfaces and landing gear.
B、 When supplying power to the hydraulic system,persons and equipment should be away from all control surfaces and landing gear.
C、 Persons and equipment shall be away from all hydraulic system control surfaces and landing gear when supply pressure.
答案：A
A、 When hydraulic power is supplied,keep persons and equipment away from all control surfaces and landing gear.
B、 When supplying power to the hydraulic system,persons and equipment should be away from all control surfaces and landing gear.
C、 Persons and equipment shall be away from all hydraulic system control surfaces and landing gear when supply pressure.
答案：A
A. Record the results if the frequency changes.
B. Alter the phase and record the results.
C. Change the frequency and record the results.
A. Tire wear increases with high speed.
B. The higher the speed is,the more fragile the tire becomes.
C. The tire blows out as the speed increases.
A. 将齿轮接合到花键轴上。
B. 将起落架轮子接合到键轴上。
C. 将传动装置接合到轴键上。
A. 防滑箔的目的是帮助降低空气流经活门时产生的噪音。
B. 防滑箔的目的是辅助活门减少空气通过时的阻力。
C. 防滑箔有助于减少空气流经活门造成的滑动噪音。
A. Make sure that there is supplied airflow in the work area.
B. Make sure that there is sufficient airflow in the work area.
C. Make sure that there is efficient airflow in the work area.
A. 本工作为准备飞机航班而给出维护步骤,以防两个空调组件失效。
B. 在两个空调组件关闭的情况下,本工作给出了为飞机飞行做准备的维护步骤。
C. 本工作给出了在两个空调组件均不工作的情况下为飞机飞行做好准备的维护步骤。
A. Propellers must be overhauled in a satisfactory shop which should be supplied by the propeller manufacturer in accordance with data.
B. Overhaul of propellers and the shop must meet the data of the propeller manufacturer.
C. Overhaul of propellers must be accomplished in a qualified shop in accordance with data supplied by the propeller manufacturer.
A. It is very difficult to determine the effects of corrosion but,as the reports from the CAP inspections are received,the inspection times will be adjusted for any severe problems.
B. It is not easy to decide the affection of corrosion,when the reports from the CAP inspections are received,the inspection duration will be changed for any serious problems.
C. It is very hard to make the decision of the corrosion effects but,if the reports from the CAP inspections are obtained,the inspection times will be arranged in accordance with the severest problem.
A. 发动机压缩机控制系统包括调速器、活门、作动器、杠杆等装置,可控制发动机里的空气流量和加速可变定子叶片的运行。
B. 发动机压气机控制系统可增加通过发动机的空气流量,部件包括调节器、活门、作动器、连杆等。
C. 发动机压气机控制系统能控制通过发动机的空气流量和可调静子叶片的操作。该系统包括调节器、活门、作动筒、连杆等部件。
D. C.发动机压气机控制系统能控制通过发动机的空气流量和可调静子叶片的操作。该系统包括调节器、活门、作动筒、连杆等部件。
A. Before you use a word,read its definition in the approved meaning column of the dictionary.
B. Before you use a word,read its approved meaning in the definition column of the dictionary.
C. Before you use a word,read its meaning in the approved column of the dictionary definition.
