And this would sit on your belt. So it would sit like this and there would be batteries that you could either put in a fanny pack or there are all kinds of jackets you could wear in order to support the batteries,"

VOA: standard.2010.01.27

Soldiers were expected to be able travel thirty kilometers per day, in full pack.

士兵一天可以行进30千米，在全副装备的情况下。

耶鲁公开课 - 新约课程节选

Soldiers were expected to be able travel thirty kilometers per day, in full pack.

士兵一天可以行进30千米，在全副装备的情况下。

耶鲁公开课 - 新约课程节选