1159、Engine driven pumps are primary pumps which run continuously when they are turned on.

164、当交互供油系统打开时,一个燃油泵可以向两台发动机供油。

163、安装座垫之前先安装座椅。

162、When there is an” emergency “situation ,it is usually a failure that requires an immediate and quick response,such as an entire engine failure, fire or smoke, or perhaps a rapid drop in cabin pressure.

161、To find the middle point, divide the measured clearance by two.

160、This Specification is designed to provide guidance for the preparation of Handbooks for all types of general aviation airplane originally certificated at maximum takeoff weights of 12,500 pounds or less.

159、The lamp comes on with a dim light.

158、The Federal Aviation Regulations require the use no maximum continuous power”, during certification of an airframe and engine combination, to show compliance with certain standards.

157、The airplane general arrangement shall be illustrated with a scale line drawing consisting of plan, side and front views presented in a vertical sequence upon a single page.

156、STE can be valuable support for technical translation.

155、Some abbreviations of parts of speech are changed to agree with standard abbreviations.