641.Lubricants for the engine and the auxiliary equipment are the same.

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--必须
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--不影响手册中已经存在的页面
时--必须准备修订版。

A. 　The form of the climb preformance presentation is decided by the
airplane manufacturer.

B. 　The format of the cruise preformance presentation is at the discretion
of the airplane manufacturer.

C. 　The form of the cruise preformance presentation is at the discretion
of the airplane manufacturer.

A. 　The intention of such terms is to provide definitions which have
practical value for technical communication.

B. 　The purpose of such terms is to provide definitions with practical value
for technical communication.

C. 　The aim of such terms is to provide definitions for practicing valuable
technical communication.

A. 　用一条水平的黑线沿着页面外侧(或两栏页面上与边槽相对的列侧)来标识修
订、添加和删除, 该黑线只与印刷品的修改部分相对应。

B. 　用一条竖直的黑线沿着页面外侧(或两栏页面上与边槽相对的列侧)来标识修
订、添加和删除,该黑线只与印刷品的修改部分相对应。

C. 　用一条横向的白线沿着页面外侧(或两栏页面上与边槽相对的列侧)来标识修
订、添加和删除,该黑线只与印刷品的修改部分相对应。

A. 　to decrease

B. 　decreased

C. 　decreasing

A. 　在活塞发动机驱动的飞机上,排气温度指示器用于识别各种功率设置下的油
气比。

B. 　在活塞发动机驱动的飞机上,排气温度指示器用于设置各种功率设置下的油
和空气的混合比。

C. 　在动力活塞驱动的飞机发动机上,排气温度指针用于识别最大功率设置下的
油气比。

A. 　In terms of format, style and method of presentation of the rules written
in this specification, the material contained in Maintenance Manuals
designed by manufacturers should be prepared under the guidance of the
it.

B. 　In terms of format, style and method of presentation, the material
contained in Maintenance Manuals designed by manufacturers should be made
in accordance with the rules written in this specification.

C. 　The material contained in Maintenance Manuals designed by manufacturers
should be prepared under the guidance of the rules written in this
specification In terms of format, style and method of presentation.

A. 　Adjust the clinometer until the bubble is in the center.

B. 　Adjust the thermometer until the bubble is in the center.

C. 　Adjust the hygrometer until the bubble is in the center.

A. 　任何维修异常都应立即通知营运人和维修人员。

B. 　任何维修异常随后都会引起营运人和维修人员的注意。

C. 　任何维修异常都应按顺序通知营运人和维修人员。

A. 　燃油泵安装在隔板上部。

B. 　燃油泵安装在隔板附近。

C. 　燃油泵安装在隔板下部。