software user's manual是什么意思

software user's manual
软件用户手册;

例句:
1.
In particular, facebook's user growth rate in the u.s. is slowing sharply.
尤其需要指出的是，facebook在美国的用户增长速度正在迅速放缓。

2.
The machine tracks eye movement by shinning infra-red light into the user's eyes.
这款电脑通过散射红外线光来追踪用户眼睛行动轨迹。