CONTROL SURFACE, Moveable panels on wings and         操纵面，

tail for movement of airplane on pitch, roll and yaw axes. 机翼和机尾上的可动面板，用以操纵飞机俯仰，坡度，

                                                      和偏航运动。

CONTROL TAB, SEE - BALANCE TAB                        操纵片，

                                                        见“平衡片”Balance Tab．

CONTROL AREA, A controlled airspace extending         管制区域，

upwards from a specified limit above the earth.         高于地面的指定极限以上的受管制的空域。

CONTROL ZONE, A controlled airspace extending         管制范围，

upwards from the surface of the earth to a specified     由地面到指定的高度以内的受管制的空域。

upper limit.

CONTROLLED AIRSPACE, An airspace of defined           受管制空域，

dimensions within which air traffic control service is  一个范围明确的空域。在该空域内，仪表飞行规则飞行

provided to IFR flights and to VFR flights in accordance 和目视飞行规则飞行有空中交通管制服务。

with the airspace classification.

                                      TECHNICAL DICTIONARY                                   36

----------------------- Page 38-----------------------

CONVERSION, To change into another form.                 转换，

                                                           改换到另一个方式。

COORDINATES, The intersection of lines of reference,     坐标，

usually expressed in degrees/minutes/tenths of minutes     基准线的相交点。一般以经纬度的度／分／十分之一分

of latitude and longitude, used to determine position or 的读数来确定位置和方位。

location.

CORROSION, A chemical action which causes gradual        腐蚀，

destruction of the surface of a metal by oxidation or      氧化或化学污染造成金属表面逐渐破坏的化学反应。

chemical contamination.