1293. 在设计原理图时有必要折衷两方面:使示意图具有目了然的详细性和便于阅读和理解的简单性

2070. Aluminum alloy is light and strong, so that it is widely used in aircraft manufacturing industry

2069. Dutch roll is an undesirabl, low-amplitude oscillation about both the yaw and roll axes that affects many swept wing airplanes,which is minimized by the use of a yaw damper

2068. Class A fire is a fire involving solid combustible materials such as wood, paper and cloth

2067. 该化合物可释放有毒烟雾。

2066. The main text of each section shall be preceded by a table of Contents, listing the paragraph heads in numerical page order

2065. This specification provides broad general guidance for preparing handbooks for all types of general aviation airplanes certified under applicable Federal Aviation Regulations

2064. When the engines are not installed, it is necessary to tow the aircraft smoothly

2063. 使用具有良好强度特性和足够重量和质量的白纸,以消除双面打印时透视显示。

2062. When the area is sufficiently cool, polish the surface

2061. DO NOT USE YOUR HANDS TO PREVENT MOVEMENTOF THE LP COMPRESSOR IF YOU DO, THE LPCOMPRESSOR CAN CAUSE YOU INJURY AND CANCAUSE DAMAGE TO THE EQUIPMENT