结果1 题目 34. Laser Rays are :(4) (1)instrument to measure the velocity of aeroplane(2)instrument to measure the intensity of X-rays(3) measure of frequency(4) highly coherent waves 相关知识点: 试题来源: 解析 (4) 反馈 收藏 ...
PURPOSE: To enable a wind direction and wind velocity measuring instrument to accurately measure the direction and velocity of an air current generated in a closed space even when the air current is very weak and, at the same time, to make the handling and operation of the instrument easier ...
CecilF.HessFunmingLiCecilF.HessFunmingLiCecilF.HessFunmingLiSpringer USHess C. F.An instrument to measure the size, velocity and concentration of particles in a flow. Proceeding of an international symposium on optical particle sizing: theory and practice . 1987...
PURPOSE: To enable a wind direction and wind velocity measuring instrument to accurately measure the direction and velocity of an air current generated in a closed space even when the air current is very weak and, at the same time, to make the handling and operation of the instrument easier ...
公开/公告日期: 2013-01-03 申请(专利权)人: THE REGENTS OF THE UNIVERSITY OF CALIFORNIA;FIGURSKI, JARED 发明人: J Figurski 摘要: A sea-floor tethered float instrument containing an accelerometer for measuring wave induced water velocity, ocean currents, relative swell kinetics and the like.收...
PURPOSE:To measure a flow velocity with high accuracy by arranging a transmission- side ultrasonic wave vibrator and a reception-side ultrasonic wave vibrator nearly at right angles to each other on the cross section where the orientation direction of the vibrators crosses the axial direction of con...
With its ability to measure wind velocity, temperature, and flow, this instrument is an indispensable tool for meteorologists, engineers, and anyone interested in understanding the dynamics of the atmosphere. The device's functionality extends beyond mere measurement, as it also provides a Beaufort ...
___is a precise instrument, which is used to measure ship velocity and calculate its voyage on the theory of Doppler Effect of sound wave in water. A. Doppler Log B. Doppler filter C. Doppler shift D. Doppler radar 如何将EXCEL...
as measured gas temperature and sonic velocity, the gas or vapour concentration is determined. The accuracy of measurement is dependent on the difference between to molecular weight of the two component gases, and the larger the difference, the more accurately the instrument will measure c[translate...
The converted commercial airliner is equipped with an instrument that can measure a hurricane’s wind profile from ground to the aircraft’s height.(这架被改装过的商业客机上装配了可以用来测量飓风风剖线(windprofile)的仪器,不管是在地面还是在飞行高度上,仪器都能发挥作用。) It is a portable intell...