Hint: Use the Block Diagram!

提示：利用结构图！

Its implementation block diagram is given.

给出了它的实现框图。

A block diagram of a sawtooth-core circuit is shown below.

下面是锯齿核电路的方框图。

The above block diagram shows a potential retrofit bulb.

以上方框图显示了一个潜在的改型灯泡。

Block definition diagram and internal block diagram improvements.

块定义图以及内部块图改进。