We've generally lost that ability, since we now have sophisticated, reliable, and portable tools to guide us.

而我们大都丧失了这种能力，因为出现了精密可靠、便于携带的导航工具。

youdao

We tried where possible to limit the list to handheld or easily portable objects, eliminating most heavy machine tools, like hydraulic jacks.

FORBES

It also produces custom analog and logic products, as well as chips used to manage power in portable devices like handheld electronics and power tools.

FORBES: Buying Tech: Texas Instruments

As the world's first portable media player to integrate wellness management tools, such as stress and body fat levels and customized workout guides, MyFit helps users achieve wellness while enjoying their favorite music tracks.

ENGADGET: Samsung announces two PMPs, one for fitness gurus, one made of glass