It bas been considered that large\|scale basic igneous activities are related to results of the break\|up of paleo\|continent. Basic magmatism could record the dynamics information for orogenic process. Thus, studying...It bas been considered that large\|scale basic igneous activities are related to results of the break\|up of paleo\|continent. Basic magmatism could record the dynamics information for orogenic process. Thus, studying it can help us to reconstruct the forming and evolution process of continental orogenic zone.The basic igneous zone in the central part of Qiangtang, Tibet, starts at the Sino\|Indian border in the west and ends at Shuanghu region in the east, being over 800km long and several to more than 100km wide. Based on published data, there are coeval basic magmatic activities with similar features in Sanjiang region, Western Yunnan and Thai\|Malaysian Peninsula. the basic dykes from Boyamalong to Qomu in central Qiangtang occur in swarms with E\|W trending and are more than one thousand in number. Single or composite igneous body is 1 to 7 km long and 0.3 to 3 km wide, being of the area of 0.3 to 20km\+2 . The total exposed area of the dykes is more than 400km\+2 . The country rocks of the intrusives are the upper Carboniferous Mushirbuka group, which consists of rift\|type deposits containing glaciomarine petromictic conglomerates.No basic dyke has been found in the strata since late Permian (Mokou Period)展开更多
The Ministry of Science and Technology (MOST) re-cently announced China’stop ten news events in ba-sic research in 2000. 1. Research into thenanomaterial scored re-markable
针对主体材料为SA-182 F53超级双相不锈钢、球阀螺塞材料为14Cr17Ni2马氏体不锈钢的海水系统管路球阀螺塞腐蚀问题,依据故障树分析(Fault Tree Analysis,FTA)的底事件识别和底事件逻辑关系判定,确定螺塞腐蚀原因为螺塞设计选材不当,并...针对主体材料为SA-182 F53超级双相不锈钢、球阀螺塞材料为14Cr17Ni2马氏体不锈钢的海水系统管路球阀螺塞腐蚀问题,依据故障树分析(Fault Tree Analysis,FTA)的底事件识别和底事件逻辑关系判定,确定螺塞腐蚀原因为螺塞设计选材不当,并提出螺塞腐蚀和螺塞垫腐蚀的处理措施。结果表明,SA-182 F53超级双相不锈钢螺塞和聚四氟乙烯垫片可满足海水系统管路球阀的使用要求。展开更多
文摘It bas been considered that large\|scale basic igneous activities are related to results of the break\|up of paleo\|continent. Basic magmatism could record the dynamics information for orogenic process. Thus, studying it can help us to reconstruct the forming and evolution process of continental orogenic zone.The basic igneous zone in the central part of Qiangtang, Tibet, starts at the Sino\|Indian border in the west and ends at Shuanghu region in the east, being over 800km long and several to more than 100km wide. Based on published data, there are coeval basic magmatic activities with similar features in Sanjiang region, Western Yunnan and Thai\|Malaysian Peninsula. the basic dykes from Boyamalong to Qomu in central Qiangtang occur in swarms with E\|W trending and are more than one thousand in number. Single or composite igneous body is 1 to 7 km long and 0.3 to 3 km wide, being of the area of 0.3 to 20km\+2 . The total exposed area of the dykes is more than 400km\+2 . The country rocks of the intrusives are the upper Carboniferous Mushirbuka group, which consists of rift\|type deposits containing glaciomarine petromictic conglomerates.No basic dyke has been found in the strata since late Permian (Mokou Period)
文摘The Ministry of Science and Technology (MOST) re-cently announced China’stop ten news events in ba-sic research in 2000. 1. Research into thenanomaterial scored re-markable
文摘针对主体材料为SA-182 F53超级双相不锈钢、球阀螺塞材料为14Cr17Ni2马氏体不锈钢的海水系统管路球阀螺塞腐蚀问题,依据故障树分析(Fault Tree Analysis,FTA)的底事件识别和底事件逻辑关系判定,确定螺塞腐蚀原因为螺塞设计选材不当,并提出螺塞腐蚀和螺塞垫腐蚀的处理措施。结果表明,SA-182 F53超级双相不锈钢螺塞和聚四氟乙烯垫片可满足海水系统管路球阀的使用要求。
