（二）业务之间具有明显的主附关系。主要业务居于主体地位，体现交易的实质和目的；附属业务是主要业务的必要补充，并以主要业务的发生为前提。
Opens in a new window，更多细节参见safew官方版本下载
。业内人士推荐Line官方版本下载作为进阶阅读
I’d been using 1Password to store individual secrets for a while, pulling them one at a time with the CLI. Harrison took it a step further. “Why not store the whole .env file’s worth of secrets as fields in a single 1Password item?” he said. Simple. Obvious in hindsight. And it led me down a rabbit hole of rethinking how I handle secrets in every project.
几何体：骨架，决定了形状（是方的、圆的，还是扭曲的）。。搜狗输入法下载对此有专业解读