857. Lower the antenna to get access to the cable connector

A. 工作在这个区域需使用护目镜

B. 工作在这个区域需使用防护服

C. 工作在这个区域需使用呼吸设备

A. Visually check the forward engine mount to the fan frame bolts if they are correctly installed and damaged.

B. Do a visual check of the bolts which attach the forward engine mount to the fan frame for the correct installation and damage.

C. Visually check the correct installation and damage of the forward engine mount to the fan frame bolts.

A. If the filters become clogged after an unusually short time, send them to the laboratory for analysis of the contamination.

B. When the filters become clogged in an abnormal short time, send them to the library to analyze the contamination.

C. When the filters become blocked unconventionally after a very short time, send them to the lab for calculation of the contamination.

A. Fuel leaks can decrease engine performance.

B. A fuel leak can cause the engine to operate badly.

C. Fuel leakage may be lower engine performance.

A. The aviation gasoline is usually used for the turbine engine.

B. The aviation kerosene is usually used for the pistion engine.

C. The aviation kerosene is usually used for turbine engine.

A. 检查扰流板、缝翼的前缘区域有无冰、雪和霜。

B. 检查扰流板、襟翼的前缘区域有无冰、雪和霜。

C. 检查扰流板、副翼的前缘区域有无冰、雪和霜。

A. If you find metal particles in the reservoir, find their source and repair the broken part.

B. If you find metal particles in the pump, find their source and repair the defective part.

C. If you find material particles in the pump, find their source and repair the damaged part.

A. 在选择检查时间或对疲劳应力的影响时,没有考虑造成腐蚀的原因

B. 从基本原理角度选择检查时间或对疲劳应力影响时,没有考虑腐蚀造成的影响

C. 在选择检查时间或对疲劳应力影响时,没有从基本原理角度考虑腐蚀的影响

A. 相关警戒灯必须在30秒后熄灭。

B. 故障的警告灯必须在30秒后关闭。

C. 相关警告灯会在30秒后熄灭。

A. Do not stretch the seals when you install them in oil filter.

B. Do not scratch the sealants when you install them in oil filter.

C. Do not squeeze the sealants when you install them in oil filter.