RAM AIR, Outside air that flows through heat         冲压空气，

exchangers in the air conditioning packs.              流过空调组件热交换器的外界空气。

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英汉对照民用航空词典                                   BOEING

RAM AIR TURBINE, A device which extends from the    冲压空气涡轮，

side of the fuselage, driven by outside airflow for   从机身一侧伸出，由外界气流驱动，以在紧急情况下提

emergency supply of hydraulic or electric power.    供液压或电源的装置。

RANDOM ACCESS MEMORY, A type of memory in           随机存取存储器，

which the data can be written into and read out of.   一种可以将数据记载和读出的存储器。一般用作短期存

Normally used for short term memory.                储。

RAT, SEE - RAM AIR TURBINE                          冲压空气涡轮，

                                                      见 Ram Air Turbine．

RATIO, A specific relationship between one number   比率，

value and another.                                    一个数值与另一个数值之间的一种特殊关系。

RATIO CHANGER, A mechanical device for changing     比率转换器，

output speed or movement relative to input speed or   用以改变输出速度或运动与输人速度或运动之间比率

movement.                                           的机械装置。

RAW DATA, Data from sensors not modified by the user 原始数据，

system.                                               没有经使用系统作任何修正的，由传感器得来的数据。

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