Logic USB equipment was formed with information flow between host controller and equipment by end pointmarking end point congregate, and it was connected to system equipment.
主机和设备间的通信流经端点标识和端点集合构成逻辑usb设备，与系统设备连接。
2
Please pay attention to the subtle differences, particularly the Tangential line marking the fillet's point of contact with its adjacent surface, and how the reflections break there as well.
请注意细微的差别，尤其是切线标示出的倒圆角与临近面的连接处，还有在那里反射光是如何被打断的。
3
Top: Checkpoint Charlie crossing point, in June 1968, then marking the border between East (Soviet sector) and West Berlin (American sector).