Two transducers b and c , which record the time when the shock wave front arrives , are placed on both sides of location ( a ) with equal distance , the average shock wave speed at location ( a ) can be calculated from the distance b to c and the time that the shock wave needs to travel from b to c . all the tested signals are stored on a pint - sized system of independent function
42.
Cong hua fiscal charges consultation co . ltd which foumded by guangzhou jxc software co . ltd and guangzhou pokin star cta office , is a high - tech service corporation concentrating on accoutant business , keep business records and software management . i ' s the first company offering digetal fiscal charges and trusteeship operation . relying on the powerful technolog of jxc software and basing the professional fiscal charges business of pokin star cta office , guangzhou jxc accountant co . ltd offer professional fiscal charges business and imformation service to spacious medium - sized or pint - sized corporation
