- total operating time
- 总计: amount to; add up to; total; ...
- 操作: operate; manipulate; handle
- 时间: time; hour
- 操作时间: hours on stream; hours to stream; manipulation time; operating time; operation time; operator; running time; time in activity
- 可操作时间: operational time
下载手机词典可随时随地查词查翻译