Here, whatever the user types until a Control-D (end of file indicator) becomes the command's input.

这里，用户输入Control - d(文件结束指示符)前输入的所有内容都成为command的输入。

youdao

D/P cell transmitter with indicator and accumulation in DCS.

差压变送器单元， 带显示和总量积算， 用于DCS系统中。

youdao

It found every 10% rise in body mass index (BMI) - used as an indicator of body fat - led to a 4% drop of available vitamin D in the body.

BBC: Study finds obesity can 'lead to lack of vitamin D'