Thee barometer is a good instrument for measuring air pressure.
气压计是测量气压的好仪器。
2
An instrument for measuring the viscosity of a fluid by passing the fluid at a known pressure gradient or velocity through a length of tubing of known diameter.
测试流体粘度的一种仪器，在实验中使流体在已知压力梯度或流速情况下流过已知直径的一段试管。
3
Objective To develope a new instrument with a pressure sensitive strain gauge for measuring the pain perception threshold of oral mucosa.