In one experiment the subjects were asked to look for surface to air missiles in satellite images.

有一个实验要求主体从卫星图像中寻找出各个地对空飞弹。

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I quickly increased our speed, calculating the time it would take for the weapons-most likely SA-2 and SA-4 surface-to-air missiles capable of Mach 5 - to reach our altitude.

我立即加速并计算着导弹到达黑鸟飞行高度所需的时间 - 它们很可能是苏联制SA-2和SA-4地对空导弹，最大速度可达3马赫。

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NEWTOWN, Conn.- Targeting pods are sensors that to enable aircraft to discharge air-to-ground weapons at a safe distance from anti-aircraft artillery and many surface-to-air missiles.

瞄准吊舱是传感器，能够使飞机在一个安全的距离，从防空火炮和很多地对空导弹发射空对地武器。

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But Louay Almokdad, political and media coordinator for the Free Syrian Army, told CNN that the rebels lack access to chemical weapons and surface-to-surface missiles.

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For example, they are equipped with defensive countermeasures against surface to air missiles which makes them suitable for operations in areas where conventional business jets might fear to fly.

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Syria's air and naval forces conducted live-fire manoeuvres aimed testing their readiness to repulse "any aggression against the homeland, " the official Sana news agency reported, with state TV pictures reportedly showing warplanes and helicopters firing missiles at targets in a desert area, as well as surface-to-air missiles hitting targets in the air.

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