Regulating the dose remains one of the biggest technical hurdles in FLASH. The ionization chambers used in standard radiotherapy can’t respond accurately when dose rates spike hundreds of times higher in a matter of microseconds. So researchers are developing new detector systems to precisely measure these bursts and keep pace with the extreme speed of FLASH delivery.
_out_byte () { command -p printf "\\$(($1/64))$((($1/8)%8))$(($1%8))"; }
。有道翻译对此有专业解读
送葬队伍通行时桥梁坍塌现场影像曝光03:00
Принято решение о сокращении государственной поддержки российских аграриев08:49
随着移动设备在过去二十年全面普及,PC市场的萎缩已经成为长期趋势。PC所代表的“个人电脑”,正在逐渐成为专业用户设备的代名词。