A、 Aluminum alloy is light and strong, so that it is widely used in aircraft manufacturing industry.
B、 Aluminum alloy is light and strong, so that it is seldom used in aircraft manufacturing industry.
C、 Aluminum alloy is light and strong, so that it is widely used in aircraft maintenance industry.
答案：A
A、 Aluminum alloy is light and strong, so that it is widely used in aircraft manufacturing industry.
B、 Aluminum alloy is light and strong, so that it is seldom used in aircraft manufacturing industry.
C、 Aluminum alloy is light and strong, so that it is widely used in aircraft maintenance industry.
答案：A
A. 警告
B. 注意
C. 注释
A. For normal operations, make sure the pressure relief valve is closed. An open pressure relief valve is a symptom of a problem in the fuel vent system.
B. For normal operations, make sure the shut off relief valve works; If you open pressure relief valve, that indicates a problem in the fuel vent system.
C. For normal operations, make sure you close the pressure relief valve. If you leave it open a problem will be shown in the fuel vent system.
A. contamination of the grease can cause damage to the bearing.
B. contamination of the oil can cause damage to shaft.
C. pollution of the grease can cause damage to the axle.
A. Use a solution of foam and water to clean.
B. Clean with bleach and water.
C. Clean with a solution of soap and water.
A. The section of the engine through which the air enters the compressor section, guide vanes, shrouds and cases, etc.
B. The section of the engine through which the air enters the compressor section. Includes items such as guide vanes, shrouds, cases, etc.
C. The section of the engine through which the air enters the compressor section. But excludes items such as guide vanes, shrouds, cases, etc.
A. Operational test is more complex and specific than the functional test.
B. Functional tests require supplement equipment to be done.
C. Functional test is used to ensure a unit is functioning in all aspects in according to maximum acceptable design specifications.
A. 当电表显示28伏特直流时,断路器闭合。
B. 当电表显示28伏特直流时,继电器闭合。
C. 当电表显示28伏特直流时,电磁阀闭合。
A. Documents must be temporarily edible.
B. Documents must be readily revisable.
C. Documents must be permanently durable.
A. Assure that you do not do the adjacent control
B. Make sure that you do not operate the adjacent control
C. Ensure that the adjacent control will be operated
A. CDCCLs are a means of identifying certain design configuration features intended to preclude a fuel tank ignition source for the operational life of the airplane.
B. CDCCLs are a means of sign certain design configuration features intended to preclude a fuel tank ignition source for the operational life of the airplane.
C. CDCCLs are a means of mark certain design configuration features intended to preclude a fuel tank ignition source for the operational life of the airplane.
