Application: watches (digital and analog), calculator, electronic notebook, electronic keys for automobile, card radio, medical equipment, memory backup power source.

电池用途：本品主要适用于手表、计算器、电子词典、汽车电子钥匙、微型广播、医用设备、备份支撑电源。

youdao

By replacing the analog flow measurement and totalizing instrument with LJ21E programmable flow calculator, the system accuracy will be better than 0. 8%.

以LJ21E可编程流量演算仪取代模拟式流量测量和积算仪表，可使系统精度优于0.8%。

youdao

It was, arguably, an analog computer, in that it housed pencils, pens, a calculator, ruler, protractor and a folder for each of one's classes.

ENGADGET: This is the Modem World: An ode to the trapper keeper