English Dictionary

unit jar

noun

A small insulated Leyden jar, placed between an electrical machine and a larger jar or battery, so as to announce, by its repeated discharges, the amount of electricity passed into the larger jar.

I bought a new unit jar for my science experiment.

意味（1）

A small insulated Leyden jar, placed between an electrical machine and a larger jar or battery, so as to announce, by its repeated discharges, the amount of electricity passed into the larger jar.