It consists of clustered comagmatic source volcanic apparatuses of fissutr type,volcanic collapse structure and glug of passive emplacement,There are five eruptive depositional and oruptive filling stages,The primary roc.
它包括同源成串的裂隙式火山机构、火山塌陷构造和塌陷被动侵位的岩塞。
Vacuum heattreatment of operation appliance forging die of 3Cr2W8V steel was suitable carried out,compared to salt bath heattreatment,the die has upper hardness and excellent toughness,the wear resisatnce of die surfance was enhanced,the defect of sink and stick was overcame,the life of die was improved.
3Cr2 W8 V钢制手术器械锻压成型模采用适当的真空热处理工艺 ,与盐浴处理相比 ,可获得较高的硬度和良好的韧性 ,增强模具表面的耐磨性 ,克服模膛塌陷、粘模等缺陷 ,提高了模具寿
Law of Ground Collapse Law of Dahongshan Copper-iron Deposit and Its Prevention;
大红山铜铁矿床地面塌陷规律及其预防
Analysis on the Stability of Karst Collapse Area in Xinqiao Pyrite Mine;
新桥硫铁矿岩溶塌陷的稳定性分析
Femoral head osteonecrosis collapse prediction using 3-D reconstruction and volume measurement methods;
三维重建和体积测量法预测股骨头坏死的塌陷
Ecological and Environmental Problems of Subsidence in Jixi Caused by Coal Mining and Treatment Measures;
采煤塌陷引起的生态环境问题及治理措施
Discussion of Titanium Mesh Early Subsidence in Anterior Cervical Subtotal Subcorpectomy Patients;
颈椎前路椎体次全切除钛网植骨早期塌陷的探讨
Reposition and reinforcement of subsidence for flat slabs of a post-prestressed concrete flat slab-column construction;
后张预应力混凝土平板-柱工程平板塌陷与复位