Catalogue of Heilongjiang sci-tech information periodicals

(3 1) Development characteristics and prospects of urban land evaluation system (32) Talking about topographic mapping technology Lu Luwei Xun (33) Talking about the application of coal mining technology Man Ming (34) Pyrophosphoric acid synthesis technology and quality research (35) Talking about fire prevention and control in West No.2 mining area of Chengshan Mine 145 team Cai Yingjie (36) Practical application analysis of Yue Fengting (37) Analysis and treatment of operation accident of circulating fluidized bed boiler: Qi Shengchun (39) Analysis of carbon monoxide shift process in methanol feed gas Yu Min (40) Discussion on anticorrosion ability of chemical machinery Yan Guo (4 1) Application of KBZ-630A/660V with AT89C52 as control core in pre-protection of frequency converter Ren Dehui (42) Determination of cefoperazone sodium in cefoperazone sodium for injection by high performance liquid chromatography Pan Yu. Kloc-0/999) Using the three-phase control button of the wheel crusher switch to realize the emergency stop and sequential start of the supporting loader —— Analysis on the anti-interference problem of low-voltage power line carrier communication driven by the 730/160 loader and PLM 1000 wheel crusher in sequence; Application of Duan Yue's (45) anchor-mesh-cable-shotcrete combined support in coal roadway (46) Discussion on the application of concrete-filled steel tube ten sheds in deep soft rock roadway in fully mechanized mining face 47 Yan (48) Modification of cooling water protection device of air compressor —— Application of FD50 (FT 51) digital flow temperature monitor in air compressor Fang Zhenjiang (49)ZF 400/ 165/32 Improvement of four-bar mechanism of fully mechanized caving hydraulic support (50) Reconstruction and expansion of two-level machine garage by heading method Qi Chuanlong (565433 Application of pneumatic chain brake in coal mine Chang Dongxing (52) Research on innovation strategy of petroleum engineering technology (53) Understanding of drug abuse (54) Accurate drawing of Yin Mao (55) Utilization and harmless disposal of residual gas from oil shale carbonization at broken coal intersection by azimuth calculation method Ren Yingtao 2 (56) Realization of production client program in integrated port management system Zheng Gang (57) Talking about the local application of wavelet analysis in mathematical statistics (58) Discussing the complexity of power system and its related problems (59) Several problems that should be paid attention to in the use of antibiotics (60) Electrical engineering and its automatic laboratory analysis operating system Liu Kangping Wu Yu (6 1) Strategic transfer of initiating explosive device distribution Liang Jian (62) Application of remote sensing image in geological mapping Zhou Xiangjiang (63) Design stone of adsorption tower.