..............page:1-4,16
..............page:7-8,10
I-DEAS′ s application in butterfly valve
qu yang 1; chen chang jun 2; huang kai 1(1 harbin electric machinery company limited; harbin 150040; china; 2 harbin natural gas company; harbin 150000; china)
..............page:35-36,40
..............page:19-20,32
Full-opening relief valve used for gas cylinders
wen dian jiang\+1; ding xin wei\+2; ma yuan\+2; wang lin\+3(1\^safety equipment factory of dalian university of technology; dlian 116012; china; 2\^department of chemical engineering & machinery; dalian university of technology; dalian 116012; china; 3\^d
..............page:5-6