1·A mercury manometer could cause a pollution hazard.
水银压力表可能产生污染破坏。
2·A differential pressure gauge is recommended for test no. 1 rather than a manometer for the following reasons: It utilizes minimum time to perform the test.
对于检测1，建议采用差压表，而不要采用流体压力表，理由在于差压表进行检测的时间最短。
3·Calculate out total uncertain degree and degree of freedom of the manometer.
计算出压力表的总的不确定度和自由度。
4·Consists of gas tube, manometer, volume controller, clamp and scale. No danger of pollution without mercury.
由气柱玻管、压力表、定容机构、固定架和体积标尺组成。本仪器不使用水银，消除了污染。
5·It is equipped with manometer, pressure reducer and flow indicator.
其上装有压力表、减压器和流量表。
1·The housing and functional parts of the heavy-duty manometer are manufactured with the aid of specific quality parameters, mounted in a special production process and checked many times.
重型压力计的外壳和功能性零部件均按照特殊质量参数制造，以专用生产流程进行安装，并经过了数次检查。
2·In this paper was introduced the factors of Influencing technical performance index of piston manometer, and analyzed the calibration and test ways of it and the measures of improving test precision.
文章介绍了活塞式压力计的技术性能指标的影响因素，并对其校验方法和提高测试精度的措施进行了分析。