..............page:346-349
..............page:357-359
..............page:382-386,414
..............page:336-341
..............page:387-391
..............page:363-366,391
On surface-strength technology of die-casting mould
liao xi-ping1; 2(1.school of mechanical and packaging engineering; chongqing technology and business unversity; chongqing 400067; china; 2.school of material science and eengineering; chongqing unversity; chongqing 400044; china)
..............page:415-418
Primary study of evaporation mechanism of vacuum filter
jia yu-mei1; zhang xian-ming1; ren hong-fei2 (1.institute of oil treatment; chongqing technology and business university; chongqing 400067; china; 2.information and electric engineering college; china university of mining and technology; xuzhou 221116; china)
..............page:411-414
..............page:419-422,426
..............page:392-397
..............page:321-324
..............page:360-362,397
..............page:377-381
..............page:331-335,356
..............page:325-327
..............page:328-330
..............page:353-356
..............page:371-376
..............page:350-352
..............page:367-370
Research into γ radiation dosage of representative mines in Chongqing
zheng yang-hua1; wang li-ao1; han yong1; ren li2; zhang wan-liang2; li ping2; li yi-wei2; du heng-yan2; lu xu-chen2(1.college of resources and environmental science; chongqing university; chongqing 400030; china; 2.chongqing radiation environment supervision department; chongqing 400015; china)
..............page:398-402
..............page:403-406
..............page:423-426
..............page:407-410
..............page:342-345