活塞压力计 meaning in Chinese

piston gage
piston manometer

Taico test instruments dead weight tester with digital display this product combines dead weight tester with digital display to make itself with more advantages of dead weight tester as high accuracy and well stability besides the advantages of digital manometer as simple operation , quick measurement and multi pressure units cyclic display
数显活塞压力计，是将数字压力计与活塞压力计进行有机结合，使它不仅具有数字压力计的操作简单、测压迅速及多种压力单位循环显示。