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Synechococcus is one of the most abundant picocyanobacteria in marine ecosystem,and the absence of Prochlorococcus would......
目的探讨关节镜引导行微创钢板内固定术治疗跟骨骨折患者的临床效果。方法2017年3月至2020年3月选取90例于黔江中心医院治疗的跟骨......
Isolation, cloning and sequencing of AFLP markers related to disease-resistance traits in Fenneropen
Amplified fragment length polymorphisms (AFLP) technique was used to analyze the fingerprint- ing of four successive gen......
Bohr-Lindhard模型被用来描述中低能速度能区离子—原子碰撞中的经典电子俘获过程。根据离子与原子的作用时间与碰撞参数的关系,建......
PetroChina has strengthened the efforts forintegrated geological study and achieved a number ofimportant exploration re......
Research on effective source rocks directly affects the accuracy of identifying hydrocarbon resources, and indirectly af......
为探究吕家坨井田地质构造格局,根据钻孔勘探资料,采用分形理论和趋势面分析方法,研究了井田7......
为探究吕家坨井田地质构造格局,根据钻孔勘探资料,采用分形理论和趋势面分析方法,研究了井田7......
Research on effective source rocks directly affects the accuracy of identifying hydrocarbon resources, and indirectly af......
基于压电阻抗(EMI)的损伤检测技术应用于大型结构健康监测目前仍十分少见。本文通过试验研究了EMI技术在大型隧道管片结构螺栓松动......
自复圣颜子之后,世居鲁都曲阜或徙居外地他乡的颜氏后人,承续先祖圣训,重儒笃学,诗礼传家,贤人辈出。在清朝顺治、康熙、雍正至乾......
渤海海域污染日益严重。监测结果显示,无机氮和活性磷酸盐是主要污染因子,农业生产和农村生活产生的面源污染是污染因子的重要来源......
The Bohai Sea is a seasonal icy sea area that has the lowest latitude of any sea experiencing icing in the northern hemi......
为深入分析渤海湾盆地乐亭凹陷油气生成条件及成藏规律,对其下第三系含油气系统进行了综合研究,结果表明:区内存在丰富而成熟的烃源岩......
对乙醛装置钢结构断裂螺栓进行化学成分、金相及硬度测试分析,结合断口形貌对螺栓的断裂失效进行了分析.研究结果表明,螺栓为应力......
在国内外冰-海洋耦合模式研究基础上,根据渤海水文、气象和冰情特点,以国家海洋环境预报中心的渤海海冰预报模式和POM海洋模式为基础......
某110kV输电线路在基建安装过程中发生铁塔塔腿角钢开裂失效。利用宏观检验、化学成分分析、力学性能试验、金相检验、断口分析及......
The Application of Pressure Coefficient in Judging Normal Pressure Reservoirs Connectivity—A Case St
Reservoir connectivity is a critical issue in the process of oil-gas exploration and development. According to the theor......
分析了现有螺栓拧紧方式的种类和优缺点,并结合现有制动盘螺栓拧紧设备的不足和缺陷,全面设计了一套新型的螺栓拧紧非标设备。该设备......
渤海海域西部沙垒田凸起区潜山为太古界花岗岩,新近系河流相碎屑岩直接覆盖在基底潜山之上。该区发育长约20km的NE向右旋走滑断层,......
Genetic Types and Exploration Significance of Slope Break Belt in Paleogene in Qikou Sag,Huanghua De
Enrichment of hydrocarbon reservoir relates to the slope break types in continental basin(sag)in China. Division and ana......