Once a transaction is confirmed, it is placed in a block after the confirmation. All of the blocks are chained together to create a permanent history of every transaction.
images that are suitable for commercial use.，详情可参考Line官方版本下载
，详情可参考爱思助手下载最新版本
（二）乏燃料，是指在反应堆堆芯内受过辐照并从堆芯永久卸出的核燃料。
A screenshot from Skyrim: Home of the Nords.。safew官方下载对此有专业解读