Another describes a typewriter with a low-velocity typebar that eliminates noise.

有一种打字机，它的低速联动杆能够消除噪音。

A typewriter is also appealing in its transparency — whack a key, and watch the typebar smack a letter onto a piece of paper.

打字机也以它透明的操作流程博人们的眼球——敲击键盘，目睹连动杆在一张纸上敲打出字母。