Add dependency (this system runs after specified systems) 添加依赖(此系统在指定系统之后运行)
Add dependency (this system runs before specified systems) 添加依赖(此系统在指定系统之前运行)
Build and return the system config 构建并返回系统配置
Set command buffer flush policy 设置命令缓冲刷新策略
Set conditional execution predicate 设置条件执行谓词
System builder with fluent API 具有流畅API的系统构建器