480.Doorstop at forward external fuselage servicing door is protruding.

A. Operational Tags need to be listed or made a legend.

B. Operating Placards shall be listed or illustrated.

C. Operation Instructions have to be listed or mapped out.

A. 加载弹簧的张力。

B. 释放弹簧的张力。

C. 调整弹簧的伸缩。

A. 降低天线以获得钢索接头。

B. 降低天线以接近电缆接头。

C. 降低风向标以接近钢索接头。

A. If as many as 50% of the holes are contaminated,you should clean the display units behinds the holes.

B. The holes on the bottom of the display unit should be cleaned once over 50% of them are clogged due to contamination.

C. If contamination causes a blockage of more than 50 percent of the holes,then clean the holes on the rear of the display units.

A. 不能使用缩写,除非有意义。

B. 不能使用缩写直到它们有通用意义。

C. 除非缩写具有普遍意义,否则不得使用缩写。

A. 检查并修理腐蚀损伤。

B. 检查由损伤引起的腐蚀。

C. 检查由腐蚀造成的损伤。

A. 字典中包括一些未经更新的单词,如果您可以将它们放入应用的技术名称类别中,它们可以是技术名称。

B. 字典中包括一些未经批准的单词,如果您可以将它们放入适用的技术名称类别中,它们可以是技术名称。

C. 字典中包括一些未经批准的单词,包括技术名称,如果您可以将它们放入适用的技术名称类别中则属于此类词汇。

D. C.字典中包括一些未经批准的单词,包括技术名称,如果您可以将它们放入适用的技术名

E. C.字典中包括一些未经批准的单词,包括技术名称,如果您可以将它们放入适用的技术名称类别中则属于此类词汇。

A. If abbreviations have special meanings,they may be used.

B. Abbreviations should not be used if they are universally meaningful.

C. Only use abbreviations whose meanings are generally recognized.

A. The auxiliary battery and auxiliary battery charger and the main battery connect together during non-normal conditions to help supply power.

B. In normal conditions,the auxiliary battery and auxiliary battery charger should be disconnected.

C. In non-normal conditions,the auxiliary battery and auxiliary battry charger should be disconnected.

A. The interval between checks is at least two minutes.

B. The lowest limit of checks is two minutes.

C. Between two checks,it needs two minutes.