2681. Make sure that the door is flush with the adjacent surfaces

A. 从新垫圈上标有ANTENNA SIDE的一侧撕掉保护膜

B. 从标有ANTENNA SIDE记号的垫圈上撕掉保护膜

C. 从新垫圈一侧撕掉保护膜然后标记ANTENNA SIDE

A. The service life of this unit will be longer without the modification.

B. The service life of this unit will be longer with the modification.

C. The service life of this unit will be the same as usual with the modification.

A. 拧紧堵头至6牛顿

B. 给堵头磅力矩至6牛米。

C. 测量堵头紧力为6牛顿米。

A. 大多数都带有堵盖,只有在实际加油过程中才能取下堵盖,然后立即更换。

B. 大多数都带有防尘盖,只有在实际加油过程中才能取下防尘盖,然后立即更换。

C. 大多数都带有防尘盖,只有在实施加油过程中才能取下防尘盖,然后更换。

A. Documents must be temporarily edible.

B. Documents must be readily revisable.

C. Documents must be permanently durable.

A. Check wash basin drains, water tap and its lines for leakage.

B. Inspect the washing sink, faucet and its pipe for leakage.

C. Examine the washing hand drain port,tap and the line for crack.

A. In flight deck, once you set probe heater switches on the overhead panel automatically, all the heater lights flash.

B. Make sure probe heater switches on the overhead panel in flight deck are in AUTO position and all the heater lights illuminate.

C. Set probe heater switches on the overhead panel in cockpit in AUTO position so that all the heater lights come into view.

A. 松开卡箍,将螺钉固定到支架上

B. 松开螺钉,将卡箍固定到支架上。

C. 松开将卡箍固定到支架上的螺钉。

A. 虽然建议使用诸如阴暗面、交叉区域、分隔符或类似的方法,但颜色的使用是符合规定的。

B. 虽然建议使用诸如斜线、交叉线、分栏符或类似的方法,但颜色的使用是允许的。

C. 虽然建议使用诸如阴影、交叉阴影、隔挡或类似的方法,但颜色的使用是允许的。

A. the blade angle of propeller is the angle between blade face and rotation plane.

B. the blade angle of propeller is the angle between blade face and relative wind.

C. the blade angle of propeller is always acute angle no matter when the working status of the propeller.