to introduce two new things.
В России ответили на имитирующие высадку на Украине учения НАТО18:04
。新收录的资料是该领域的重要参考
def save(self, item: Item) - None:
Gray (Gy): A measure of the absorbed dose—that is, how much radiation energy is absorbed by the body. One gray equals 1 joule of radiation energy per kilogram of matter. FLASH delivers a single dose of 40 Gy or more in a fraction of a second. Conventional radiation therapy, by contrast, may deliver a total dose of 40 to 80 Gy but over the course of several weeks.