Many return oil filters have bypass valves inside. When the filter element is clogged the bypass valve opens, which makes the oil flow through the bypass

A. Airspeeds used in this Section shall be specified in Indicated Airspeed, assuming zero instrument error, in order to make the information as directly usable as possible.

B. This Section shall use Indicated Airspeed as Airspeed, i.e. the instrument is mostly accurate, so the information can be used directly.

C. Airspeed used in this Section shall be defined as Indicated Airspeed, that is, the instrument is almost right, so as to make the information possibly be used directly.

A. 位于连接发电机和驱动组件的法兰上的端口，使滑油在恒定转速驱动器和可用发电机之间流动。

B. 位于连接发电机和驱动组件的连接处的端口，使滑油产生了在变速驱动器和发电机之间流动的可能性。

C. 端口位于连接发电机和驱动组件的法兰上，使滑油可以在恒速驱动器和发电机之间流动。

A. 这个日期模块告诉你如何操作这个单位。

B. 这个数据模块告诉你如何计算这个单元。

C. 这个数据组件告诉你如何操作这个装置。

A. 说明如何保持此记录，以便更改飞机的重量或力矩时，或在飞机正常运行时可以使用准确的起始数据来计算重量和重心。

B. 说明在更改飞机的重量或力矩时如何保持此记录，以便在飞机正常运行期间可以使用重量和平衡来准确计算起始数据。

C. 说明当飞机重量或力矩发生改变时如何进行记录，以便在飞机正常运行期间能够为计算重量和平衡提供准确的起始数据。

A. 燃油泵安装在隔框附近。

B. 燃油泵与隔框安装紧密。

C. 滑油滤安装在机匣附近。

A. 如果无线电信号不清晰，重新调整频率。

B. 如果电信号没有被清除，重新调整频率。

C. 如果无线电信号没有被清除，重新调整频率。

A. Because of the risk of contamination, you must do this task in a very clean environment.

B. To prevent environmental pollution, this task must be done in a very clean area.

C. In order to prevent contamination, the task you must do is to find a very clean environment.

A. Warnings, cautions and notes may be used to highlight or emphasize important points.

B. Highlight or underline the key points with alerts, attentions and comments.

C. Alerts, cautions and comments can be used to protrude or underline the key points.

A. Light L4 illuminates within 5 seconds.

B. Light L4 comes on after 5 seconds.

C. Light L4 comes on 5 seconds before.

A. 当灯点亮时，它能够启动后视反光镜。

B. 当灯点亮时，它能够照亮后反光镜。

C. 当灯点亮时，它能够显示在后视反光镜上。