Effects of different dosages of NBPOS bait on their control efficacy to the red imported fire ant,Solenopsis invicta;
氟磺酰胺毒饵使用量对红火蚁防治效果的影响
The Development and Validation of Adolescent Pathological Internet Use Scale;
青少年病理性互联网使用量表的编制与验证
Materials of forged steel roll for cold rolling wide strip and its application;
宽带钢锻钢冷轧辊的材质与使用
Features of all kinds of hard alloy cu ts and its application and mainternance;
硬质合金刀具的特点·使用·维护
Research and application of topside valve house of pump plunger;
抽油泵活塞上阀罩的改进与使用