..............page:24-25,6
..............page:102-101
Usage of the reflected infrared sensor in automatic guiding car
wu jian-ping1; yin zhan-guo2; cao si-rong1; li kun-yu an1 (1.the college of applied nuclear technology and automation enginerring in chen gdu universty of technology; chengdu; 610059; china; 2. sino-star scien tific and technology co.; ltd; beijing 100059; china)
..............page:21-23
..............page:18-20,12
..............page:55-56,40
..............page:73-74,62
..............page:66-68,44
..............page:53-54,72
..............page:99-101
..............page:35-37,28
..............page:41-42,91
..............page:85-86,98
..............page:75-77,95
..............page:13-15,30
Function of avogadra constant N_A in SI
liu si-song1; dang zheng-qiang2 (1.chengdu university of technology; chengdu 610066; china; 2.national institute of measurement and testing technology; chengdu 610021; ch ina)
..............page:45-46
..............page:92-93,89