Dulong superlarge tin-zinc-polymetallic deposit is a massive sulfide deposit,which undergone metamorphic metallogenetics during Indosinica period and then was added by magmatichydrothermal reworking metallogenetics during Yanshan period.
一个受后期改造和热液叠加的块状硫化物矿床——都龙超大型锡锌多金属矿床＠刘玉平￥中国科学院地球化学研究所块状硫化物矿床，热水沉积，变质改造，岩浆热液叠加，成矿机理，成矿模式一个受后期改造和热液叠加的块状硫化物矿床———都龙超大型锡锌多金属矿床刘玉平（中国科学。
Applied instances of transducer actiyator--reclaim of transducer in the system of electromagnetism
变频调速的应用实例——电磁调速系统的变频改造
The Frequency Conversion Rebuilding of 102-180 Baking Machine of Three-pillar Water Rolling;
102-180三柱轧水烘干机的变频改造
High-voltage frequency-conversion renovation of 3~# ventilator of primary dust-collecting system of converter
转炉一次除尘3~#风机高压变频改造
Condensate Pump Retrofit for a 630 MW Supercritical Power Unit Using Frequency Conversion Technology
630MW超临界机组凝结水泵的变频改造
HIGH-VOLTAGE FREQUENCY-CONVERSION REFORMATION OF No.3 VENTILATOR OF PRIMARY DUST-COLLECTION SYSTEM OF CONVERTER
转炉一次除尘3#风机高压变频改造
DCS Control Policy of Primary Air Fan Frequency Converting Reconstruction
一次风机变频改造的DCS控制策略
FREQUENCY VARYING RETROFIT OF ELECTRIC MOTORS USED FOR CONDENSATE PUMPS OF 2×330 MW UNITS
2×330MW机组凝结水泵变频改造
Analysis on S109FA Unit Condensing Pump Variable-frequency Retrofitting
S109FA机组凝结泵变频改造分析
Performance Analysis of 900 MW Unit Condensate Pump Variable Frequency Reformation
900MW机组凝泵变频改造性能分析
Reformed Design of Mine Winch Electric Control System Based on PLC Variable-frequency
煤矿绞车电控系统的PLC变频改造设计
Improvement of High-voltage Frequency Conversion for the Blower of Fluidized Bed Boiler
循环流化床锅炉风机的高压变频改造
Frequency Transformation of Primary Air Fan Variable in Huaneng Pingliang Power Generation Company
华能平凉发电公司一次风机变频改造
The Scheme of High-voltage Inverter for Steelmaking Dust Electromotor Analysis
炼钢除尘风机高压变频改造方案分析
Reforming and Application of Frequency Conversion Timing System for Boiler Powder-Feeder;
锅炉给粉变频调速系统的改造及应用
Energy Saving Reconstruction with Frequency Conversion Technique of Water Supply System Based on PLC;
基于PLC的供水系统变频节能的改造
Design and Improvement of CY6140 Lathe with PLC and Transducer;
用PLC和变频器对CY6140型车床的改造设计
C650-2 Lathe Reconstruction on the Basis of PLC and VVVF;
基于PLC和变频器的C650-2型车床改造
Technology Transformation of Energy Saving by Variable Frequency Speed Control of Blast and Induced Draft Fans in Hot Water Boiler;
热水锅炉鼓引风机变频节能技术改造