The cover, when down, is a guard for the switch in the ON position.

此系统用于消除或防止天线或雷达罩上冰的形成。

你可以使用除了分号之外的所有标准英语的标点符号。

对于动词或者形容词，只使用经批准的形式。

马赫数是真空速与音速的比值。

最大着陆重量是着陆触地所批准的最大重量。

修订日期应显示在每一修订页上。

确保紧固件头部与蒙皮齐平。

执行排故程序来找到故障原因。

All of the cracked lugs had two flanged bushings installed in the lug hole per Service Bulletin 2243 or in production to eliminate an earlier problem of migration of straight sleeve bushings into the mating clevises of the stabilizer.

Some airplanes, particularly relatively simple airplanes, may not need CAPs because adequate information to maintain their continuing airworthiness throughout their useful lives is contained in the airplane＇s maintenance manual.