commercial instrument
1.Our Commercial Instrument law has no regulation about hidden guaranty endorsement and academic circles also seldom discuss this.
2.Demand deposits have no maturity and must be paid by commercial banks when a negotiable instrument, generally in the form of a check or a credit card, is presented.
3.US Army New Training Helicopter(NTH)is a non-developmental item commercial helicopter which is to replace Bell UH-1H as an initial en- try rotary wing and primary instrument trainer.
4.In this dissertation, the working principle with key technique of the EDFA power supply、the fiber dispersion and index distribution measurements are presented respectively. With the two power supply of 980nm EDDA、three apparatus of dispersion measurement and the instrument measuring the fiber index distribution are successfully designed and debugged, the prototypes in lab have been transferred into commercial models.

