回转式计数设计，计数快速，运转平稳。

Rotary counting design with fast and smooth operation.

youdao

回转式计数设计，计数快速，运转平稳。

Rotary counting design. Quick counting and smooth operation.

youdao

回转式计数设计，计数快速，运转平稳。

Rotary counting design. Quick counting and smooth operation.

youdao