precise instrument
3.Clock and form know together as.Clock and watches all calculate with designation horary of precise instrument.
4.QC is equipped with chemistry checkout room, balance room, microorganism checkout room, ordinary instrument room, precise instrument room to provide each kind of advanced examination facility.
5.Doppler Velocity Measurement System 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.
6.It was characterized by SEM,EDS,XRD,precise pH instrument and TT230 eddy flow thickness instrument.
7.At present, the electrostatic suspended gyroscope (ESG) is the most precise inertia instrument in the world.
8.Coordinate Measuring Machine isa kind of precise measuring instrument, which is characterized as largemeasuring space, high precision, better generality, higher flexibility andautomated measurement. CMM is the main measuring instrument used inmanufacturing industry, especially in aircraft and automobile manufacturing, tocollect quality data and aid in quality control.
9.This system has small volume, excellent stability, is suitable in the acme communications system and the precise precision instrument as well as the high frequency wireless transmission system and so on.
10.In this paper,conventional testing instruments and calculating methods for the water vapor pressure component are analyzed and discussed. In addition,a more precise testing instrument and the corresponding calculating method,recommended by the Central Meteorological Bureau (CMB),are introduced. Last,the way to select a testing instrument or to design a self made one is given so that the instrument might be the fittest for the general or simulated atmosphere conditions when field determination is conducted in IC engine testing.

