But under proposals to be discussed at a November meeting of the radiocommunication sector of the International Telecommunication Union—the United Nations agency in charge of broadcasting official time—this leap second might be the last.
详情正文
登录后查看完整内容
使用 DeepEvidence / 梅斯账号登录，新用户可在登录页面注册。
登录 / 注册登录成功后将返回当前页面，继续浏览。