50.Whether or not the value shown is limiting,it should be stated.

A. 　可以在强风天气下打开货舱门,强风对于打开的货舱门是非常危险的。

B. 　不要在强风天气下打开货舱门,强风对于打开的货舱门是不安全的。

C. 　不要在强风天气下打开货舱门,强风对于打开的货舱门是非常危险的。

A. 　修正空速(CAS)仅为按需使用,以符合认证机构的任何型应要求,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)工作。

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

A. 　在检查单之后可以增加程序成便飞行员更好地理解简易检查单中釆取措施旳原因

B. 　检查单可能需要增加额外信息,以便飞行员更好的理解检查单中的措施。

C. 　检査单后面可能还有附加信息,以便飞行员更好的理解怎样实施检查单。

A. 　液压系统为飞行控制系统的操作提供压力。

B. 　飞行控制系统为液压系统的操作提供压力

C. 　液压系统与飞行控制系统共同提供压力。

A. 　Set the switch to on.

B. 　Move the switch to on.

C. 　Put the switch to on.

A. 　In this Section which is a separate attachment of the Handbook or as a separate document,the manufacturer shall provide an equipment list.

B. 　The manufacturer shall provide an equipment list in this Section,in a separate document appended to the Handbook,or as a separate document.

C. 　Being a separate appendix of the Handbook or as a separate document,the manufacturer shall provide a list of equipment of this Section.

A. 　The manufacturers of major components must provide maintenance,troubleshooting inspection and repair data in the same layout of this specification.

B. 　The manufacturers of major components is looking forward to gain maintenance troubleshooting,inspection and repair data with the same form of this specification

C. 　The manufacturers of major components should provide maintenance,troubleshooting inspection and repair data with same format of this specification.

A. 　通常,当在章节末尾或出版物的后部增加页面-不影响手册中的页面时-必须准备修订版。

B. 　通常,当在章节一端或出版物的背面增加页面-不影响手册中的页面时-应随时准备修订版。

C. 　通常:当在章节末尾或出版物的背面增加页面-不影响手册中己经存在的页面时-应随时准备修订版。

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. 　In order to make airplanes have long lives,they are often in good condition.

B. 　To make airplanes have long lives,it is necessary to ensure their flight safety.

C. 　Because the long lives of airplanes are required,make sure the mechanics do the maintenance task correctly.