Owing to the sabotage by Lin Biao and the Gang of Four, there is an age gap in our scientific and technical ranks which makes the training of a younger generation of personnel all the more urgent.

• 由于林彪、“四人帮”的破坏，我们的科学技术队伍发生了青黄不接的现象，这就使加速培养年轻一代的科学技术人才的任务更加迫切了。