That same day, an SU-15 jet had accidentally flown too low, passing incredibly close to Gagarin's MiG.

同一天，一架苏-15喷气式飞机意外飞得太低，和加加林的米格战机极其接近。

When the Mig 25 proved ineffective, the Soviets doubled down and developed the Mig 31.

当 Mig 25 被证明无效时， 苏联人加倍努力并开发了 Mig 31。

The Mig 31 would still stall out trying to get to the same altitude as a SR71, and typically would only get within 10,000 feet, not nearly close enough for a guaranteed missile intercept.

米格 31 仍然会在试图达到与 SR71 相同的高度时失速，并且通常只能进入 10, 000 英尺以内， 距离保证导弹拦截还差得很远。

The only hope for a Mig 25 to intercept an SR71 would be if it somehow managed to get an early enough warning to line up a head-on shot at the SR-71, and even then its missiles

米格 25 拦截 SR71 的唯一希望是， 如果它以某种方式设法获得足够早的警告，以便对 SR-71 进行正面射击， 即便如此，它的导弹也是如此。