For reference, a space shuttle launch only reaches up to 170 decibels.

作为参考，航天飞机发射的声音仅为170分贝。

He says redesign booster rockets should be available for a space shuttle launch in February 1988.

他说，重新设计的助推器在1988年2月的航天飞机发射中应该能用到。

NASA’s last manned space shuttle launch was with its Space Transportation System in 2011.

NASA 上一次载人航天飞机发射是在 2011 年的太空运输系统中。

NASA administrator James Fletcher said the agency will shoot for only five shuttle launches the first year, 1988, and that's less than half the number that NASA had been planning for this year until the accident happened.

美国宇航局局长詹姆斯·弗莱彻表示，计划表里的第一年，也就是1988年，美国宇航局只会进行5次发射任务。这一数字是该机构原计划的不到一半，因为挑战者号失事了。