204.Once a symbol or device is established for a valve or control,it shall be used for this type of unit throughout the manual.

A. 　修正空速(CAS)仅为按需使用,以符合认证机构的任何对应要求,因为飞行员延程飞行时需按照指示空速(IAS)工作。

B. 　修正空速(CAS)仅在紧急情况时使用,以符合认证机构的任何对应要求,因为飞行员不能按照指示空速(IAS)I 作;

C. 　修正空速(CAS)仅在必要时使用,以符合认证机构的任何対应要求,因为飞行员完全按照指示空速(IAS)工作。

A. 　Calibrate the hygrometer to the Celsius scale.

B. 　Calibrate the thermometer to the Celsius scale.

C. 　Calibrate the clinometer to the Celsius scale.

A. 　Never Exceed speed or Mach Number is the speed limit that can never be exceeded at any time.

B. 　Never Exceed Speed or Mach Number is the speed limitation that will be excessively at any time.

C. 　Never Exceed speed or Mach Number is the speed limit that may be surpassed at anytime.

A. 　封面标题和适用的飞机名称应显著地显示在手册的封面或书脊(或两者)上。

B. 　封面标题和适用的飞机名称应着重地显示在手册的封面或书脊(或两者)上。

C. 　封面标题和使用的飞机设计应突出的显示在手册封面或书脊(或两者)上。

A. 　通常,渗透油从 A 口流入活门,从 B 口流出。

B. 　通常,液压油从 A□流入活门,从 B 口流出。

C. 　通常,滑油从 A 口流入活门后流经 B 口。

A. 　Entrance stairs or step are connected with entrance doors and move accordingly.

B. 　Entrance stairs or step are integrated with entrance doors and operate together.

C. 　Although entrance stairs or step operate together with entrance doors,they are not integrated.

A. 　It is fine to use alternative materials.

B. 　It is forbidden to use alternative materials.

C. 　The alternative materials are not unserviceable.

A. 　Install the correct dump valve and the correct gasket.

B. 　Install the dump valve and the appropriate gasket.

C. 　Install the dump valve and the correct gasket.

A. 　If there is hum from the loudspeaker,don＇t adjust the potentiometer.

B. 　Adjust the potentiometer unless hear a hum from the loudspeaker.

C. 　Adjust the potentiometer until the loudspeaker no longer hums.

A. 　其他信息可能会显示在封面上。

B. 　其他信息可能会在盖板上留下。

C. 　其他信息可能会显示在目录上。 ’