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１ 液体压力计的历史及现状 液体压力计是人类最早用于计量压力量值的仪器。它具有结构简单、使用方便、示值稳定、重复性好、测量准确度高等特点，广泛应用在较小的表压、绝对压力、大气压和负压等低、微小压力的量值传递、检定和精密测试中。 液体压力计根据结构和测量范围?
1 history and status of the liquid pressure gauge Liquid pressure gauge is the earliest man used to measure the amount of pressure equipment. The utility model has the advantages of simple structure, convenient use, stable indication, good repeatability and high measurement accuracy. The utility model is widely used in the fields of small gauge pressure, absolute pressure, atmospheric pressure and negative pressure, Precision test. Liquid gauge based on structure and measurement range?