将“uprightness"翻译成中文

What's more, they are able to walk upright for long distances.

更重要的是它们能够在远距离行走中保持直立。

The aerosol shall be tested in the position it is designed to be used, e.g. upright or inverted;

喷雾器应在设计使用的姿态下进行试验,如垂直或倒置;