319、Acetone is a heavy duty degreaser suitable for metal preparation and removing grease from fabric covering prior todoping.

1142、在切口上粘贴第一层胶带，再呈对角线粘贴第二层和第三层胶带。

1141、安装天线时，对齐箭头必须朝前。

1140、A value of 2 mm is permitted.

1139、All text shall be prepared in one or two columns with justification at the discretion of the manufacturer, however, two columns are preferred for ease of reading.

1138、If desired, the manufacturer may include more than one airplane model in the Maintenance Manual.

1137、涡轮通过减速齿轮转动，向高压轴施加扭矩，从而驱动发动机和飞机附件。

1136、Note is an operating procedure，inspection, repair or maintenance condition, etc , which is deemedessential to highlight.

1135、Reinforcement plates make the lap joints stronger.

1134、Center of gravity is the point at which an airplane would balance if suspended .Its distance from thereference datum is： found by dividing the total moment by the total weight of the airplane.

1133、语音记录器组件的外壳具有以下特性：防水、耐冲击和耐热。