1. Sound pressure measurement, sound intensity measurement, sound power measurement, time field wave display, instantaneous sound power measurement and sound field indicator measurement. 声强测量、声压测量、声功率测量、时域示波、短/瞬时声功率测量和声场指示值测量。
2. Sound pressure measurement, sound intensity measurement, sound power measurement, time field wave display, instantaneous sound power measurement and sound field indicator measurement. 声强测量、声压测量、声功率测量、时域示波、短/瞬时声功率测量和声场指示值测量。
3. Primarily concerned with controlling the measurement of project types, topography, line measurement, deformation measurement and geographical information system measurement of results. 项目类型主要涉及控制测量、地形测量、线路测量、变形测量及地理信息系统等测量成果。
4. Primarily concerned with controlling the measurement of project types, topography, line measurement, deformation measurement and geographical information system measurement of results. 项目类型主要涉及控制测量、地形测量、线路测量、变形测量及地理信息系统等测量成果。
5. High precision laser interference measurement system is the decisive factor of precision displacement measurement. In this paper, a kind of two_frequency laser measurement system is introduced. 高精度的激光干涉测量系统是精密位移测量的决定性因素。本文介绍一种自行研制的双频激光测量系统。
网络释义
truck payload measurement system weight measurement sensor 载重车有效载荷测量系统重量测量传感器;
Instruments for the measurement of sound intensity-measurement with pairs of pressure sensing microphones 声强测量仪 用声压传声器对测量;
Methods of measurement for satellite television earthreceive-only station-Door-out unit measurement 卫星电视地球接收站测量方法 室外单元测量;
Methods of measurement for satellite television earth receive-only station-Door in-unit measurement 卫星电视地球接收站测量方法 室内单元测量;
Chapter II Datum Instruments of Measurement and Standard Instruments of Measurement 第二章 计量基准器具和计量标准器具;
