As the reactor continued to burn, military helicopters reportedly flewover the site and dropped wet sand, lead and boron onto the burning reactor.

因为反应堆的大火仍在燃烧，有消息称，苏联动用了军用直升机，在反应堆上空空投湿砂、铅和硼等灭火物。

youdao

So once the pebble is depleted a fresh pebble can be put it in or it can be re-circulated back in the reactor if its burn-up isn't all used up or the fuel isn't all used up.

所以，一旦球体被分离了，新的球体能够,放进去或者它能够在计算回反应堆里,如果它燃烧完了，但没有用完，或者燃料,没有全部用完。

youdao

The burn-out accident occurred several times in operation of dry type hollow shunt reactor.

干式空心并联电抗器在运行中曾发生多起烧损事故。

youdao

Yes I have seen the advocacy for Liquid Fluoride Thorium reactors and there are some apparent tantalizing advantages over current Uranium reactor designs like ability to burn plutonium as a starter fuel, less production of transuranics, higher fuel burn efficiencies, etc.

FORBES: The Future of Nuclear Power: Cheaper and Safer?